Personally, when it finally came time, I bought my V-specII and drove it every day for about 2 months, just because I finally owned it (10 years waiting) and it now has a carpeted, lined garage, complete with a bar (shit you not) and I take it out on weekends,
I have an old Subaru Wagon for day to day use, reasons being:
*It is probably cheaper to own this than drive the GTR everyday (maintenance, depreciation, insurance, risk of damage etc)
*If someone opens a door into, I laugh at the mark it puts in their car, and wonder which mark they put on mine
*When I decide to pull parts off the GTR (turbos etc) there is no timeframe to have it back together
*When I do drive the GTR, even on 14psi, it blows my mind, without me having to be stupid in it (you would be surprised how quickly you get used to having 300+kw on tap)
There are heaps of other reasons too, but I would say 100%, if you are going to drive it every day, buy a normal one, but realistically, for what it costs to have a bomb, with some third party property insurance on it, what it will save you on the GTR is worth it, then you can buy something a bit special.