I do love a good rant! I'm normally the one ranting however and as I age, it's getting steadily worse! Answering a couple of your points:
Consumers should stay away from IP systems and in my experience wifi cameras are too unreliable for the amateur network fiddler
No and yes. No need to stay away from IP. It's just that there are a huge amount of people out there that think everything should be simple to install and it rarely is. Consumer oriented kit can be easier to get support for as it is sold as such and support is consumer/end user oriented. Professional equipment is easy to get support for if you're an installer or have the backup of your supplier. I'm an installer but I have to admit I loathe going to my supplier for support as they generally know less than I do after so many years in the business and I have little patience dealing with them. If I get stuck I persevere, or contact Hikvision who ask why I've not gone back to my supplier first....WiFi cameras - yes, give them a miss. Most Hikvision cameras don't support WiFi natively anyway. I'll normally only use WiFi to get where cables really cannot - between buildings using point point wireless bridges.
Dont buy 2nd hand IP stuff you could end up with bricks and no support from makers or installers - you didnt buy from them
Often true unfortunately. I sell on cameras on eBay when I upgrade them. However I always strip them down, clean them, update to the latest firmware and deactivate them to an out of box state. I imagine most don't....
If you are a small business or own a mansion you need an accredited local installer who will design a proper system and guarantee and maintain its operation - but thats going to cost thousands so suck it up. Its not for the amateur diy
Definitely an advantage to having that backup - so long as you get the right installer. There are many electricians, alarm engineers, aerial installers who have all jumped on the CCTV bandwagon who are clueless. Some of the work I come across is beyond belief.
There's a big difference in what works for a small well lit room and yet will be useless for your back/front garden 24/7 all seasons
This is the one I'll have to disagree with. I come from an analogue CCTV background and started around 30 years ago. For a long time IP cameras simply weren't up to scratch and the industry hung on to analogue way longer than other countries. There was a time 9/10 years ago where IP would not have been a consideration for city centre CCTV and we were still installing analogue systems and cameras with 1/2" (or even 1/3") CCD that would easily outperform IP. I chuckled the first time a rep showed me one of the first Hikvision cameras and needless to say wouldn't use it. However the low light capability and image quality of IP has moved on so much. 7 years ago I got my first Hikvision domes - 1 megapixel that would work down to 0.1 lux at F1.2 (though the lens was actually F2 so that figure was a joke and they were pretty poor) The new AcuSense are specified at 0.03 lux at F1.4 and have an F1.4 aperture lens. Unfortunately there'll be a lot of older IP kit kicking around for sale second hand so it pays to research models and specs if buying them.
PIR sensors seem very good value but I havent seen them integrated with DVRs to initiate intruder recording (motion sensors being largely unreliable waste of space) Perhaps its in there somewhere known only to pros
Yeah I used to do this with Analogue DVRs and still do on the Hikvision NVRs from time to time. However with the AcuSense tech it's getting to the point where good results are available from motion and other analytics without using PIR. I've just 10 mins ago swapped out one of my own 2 megapixel Darkfighter turrets for a 4 megapixel AcuSense and will be disabling the link to the GJD PIR.
so its back to BNC coax video stuff for me no internet access cant be digitally hacked so no need for convoluted security (of course any system can be compromised by direct physical intrusion)
lol don't do it!
Having had my rant it must be said that there is a growing urgency for home security products just not the pile of rubbish on offer on Ebay
True. While I love IP and Hikvision for the kit and the way the technology is moving forward, I actually also blame them for harming the industry for those who are trained, experienced and knowledgeable. There are a lot of installers throwing in systems with little thought for standards and providing little support when a customer has issues. I've seen a lot of posts where a user has an issue and the installer has vanished