I would definitely have to say cars if it was for the rest of my life.
I look at it this way. Women don't stay beautiful forever, and when your old, you're not going to find any women unless your rich, and that is probably not the case because you have already used all your money trying to get girls.
On the other hand, being a single man means you don't have to support anyone but yourself financially. After a long day at work, you can go home to silence and get a good nap in. Wake up, grill some steaks, watch some tv, then go back to sleep.The weekend comes and what do you know, a pristine car of your choice with everything you wanted is in your driveway. No it's not a dream, all the leftover money you have from paying the bills and food can go into whatever you want.