Thanks for the answer and for the link. Being ignorant, I'd choose wireless because I only have to get power to the cameras rather than have to physically connect them to a (remote) hub. I have 13 amp sockets all over my new place, so access to them w/be easy - getting cables, whether ethernet or PoE from four (roughly) cameras to one router location will involve drilling holes through walls and having surface mounted cabling along walls/skirting boards. Not an issue for you?? If I was installing in a new build, I'd definitely go wired, but if the signal strength is good enough, I'm bemused why anyone would choose wired over wireless in a retrofit situation. Genuinely not having a pop here, just puzzled...
I had a wifi camera setup for 6 months before I switched to PoE cameras - far more reliable. The cabling didn't cost very much, and was able to utilise the sky cable hole to feed the PoE cables for two cameras to a network switch.