Too much thinking IMHO, I aren't going to have a bike that is more hassle than fun. The dealer has the bike I want for the money I have, it's a deal either new or used. The what ifs on technology and residual value and previous owner bodged or dealer bodged are all just balanced out differently depending what you buy and impossible to predict. I don't play their warranty game on new bikes, I do the services myself and if that invalidates the warranty I would have to pay, but would have the fight first. I don't pay the MOT blackmail either, my horn can be as strident as I like and my light bulbs never blow while parked outside the test station.
I did keep the Bonneville for 8 years because I liked it and didn't fancy anything else. These days there are bikes out there I want to try, so I can't see me keeping the V7 after this year. I like ex-demo's and bikes people didn't like and sold at 6 months old, but what are the chances of finding the type you want like that. I've only managed it twice in 20 years.
So called traction control, actually ASR is just a freebie with ABS and FI, if you ride normally it will never trigger. It can't fail on its own, any issue will be with the ABS or FI. I have no fear of electronics it's just another mechanism that can be diagnosed with the right tools and repaired. I won't be having points any time this side of the next war, electronic ignition all the way.
Andy