That's fair enough, but if you prefer comfort and convenience over performance why not go down the GTD route and save a few quid on petrol. The GTD has good performance and probably all you would ever need. Why the need for a GTI if your not that interested in performance stats? Just asking?
A fair observation and question, with simple answers really. I currently have a Mk5 GTI, bought because barring the not-so-nice rear bumper, I loved the looks (including red accents), smooth petrol engine, effortless performance, and it brings a smile to my face even to this day. I've driven diesels before, not really for me, and with the mileage I do, the cost benefits are of little relevance.
I'm buying the Mk7 GTI for much the same reasons, except this time there is not one angle I don't like about it. Again, I like the red accents, and much prefer the GTI alloys over the GTD ones. You wrongly assume that I'm not interested in performance stats. If I wasn't bothered I'd just get a normal Golf, but there is a level of performance, smoothness and agility I'm used to enjoying, only to be improved on with the Mk7. What I'm not interested in is eeking out a 10th here, 1s per mile there and adding stuff that's really only ever going to be realised by a skilled driver on a track.