I agree to a certain extent, but I've always been paranoid about little noises ever since I started doing stuff myself to it (hence the fire extinguisher in the footwell)
But having owned Turbo cars you get into a routine about servicing it, maintaining it & running it. I'm confident that the car is setup right now & should last assumming I don't neglect it
well when you decide to mod the car you've decided to shorten the lifespan of the engine and all the other bits and pieces that would be getting more stress put on them, for instance a tracked 350Z would need lots of stuff replaced very quickly compared to one spending most of it's days on the M1 doing 30-35Mph. For the modding engine part lets for arguments sake say they decided the parts would last 150k/miles... if you start modding and putting extra stress on the engine this number will decline... I'd be concerned FI'ing a high mileage engine without changing the internals first and give it generally a bit more TLC. If you have a < 50k/miles Z I see no reason why you'd FI it and keep it happy for another 30-40k/miles... I'd say it would be well looked after if the owner bothered to FI it in the first place I do however would be put off buying an N/A car that had been FI'd if I didnt know the full story or the owner themselves.
Not sure what Nurrish is doing! IMO I think he'd had to much last weekend