This is a question I've asked myself. The answer would depend upon a number of things.
1. My environment. Could I garage it? Would it fit in with what my friends and colleagues would find acceptable. By that I mean, would it alienate me because they're still driving old clunkers and I've got a half-million dollar, brand new vehicle?
2. Would I worry about it's being stolen? Would it make me happy - or anxious?
3. Would it own me? That is, would I have to pay so much attention to it, it would become something always weighing on my mind as far as maintenance, spare part replacements, etc..
These are just a few of the things which would go through my mind. You might feel differently. Personally, if money were no object, I'd probably buy a 'top of the range' but common make of car. One quietly luxurious with plenty of performance, but one that at the same time doesn't turn heads and attract a lot of attention.