I'm having the same problem you are right now Max, I really have no clue what I really want/need to buy. I change my mind every week, I just cant make up my mind! With my last car, it was kinda a spur of the moment type thing, I needed a car, and I had no clue what i was going to buy. I seen a Passat, and liked the styling of the car, so I bought one. (really wish i didnt now though )
I know you have probably done a huge amount of research on what kind of car you should buy(and most likely have somewhat of a list??right.). So if money is a factor, then your choices should be cut down alot there. I think the WRX would fall in to that catagory.(somewhat cheaper) If not, then what do u really need? A sportscar (slk32 AMG), luxury/touring car (BMW 3 series), the list could go on. If money isnt a factor, just buy what you REALLY want. Just my $0.02.
"Car Manufacturers give us a well engineered basic car but leave it's real development to us."