I've got a 99 boxster in almost-new condition and a 72 911 in far from new condition

I've got some sort of power or fuel problem with the 911, thought it was the carbs, rebuilt them, still problems, it's noisy at anything above 50 km/h, sport shocks make railroad tracks feels like potholes, I'd like a more powerful car and a cabrio. I get into the boxster, turn the key and feel comfortable. Great AC, awesome sound system, cabrio, good fuel mileage, awesome leather smell.
Guess which car is for sale?
Yep, the boxster. Despite all its problems, there's no way I'd sell the 911. It keeps occurring to me to sell both and buy a really mint 89 3.2 cabrio, but I know I'd end up regretting it. It'd be one of those "remember that car you should've never sold?" stories. Besides, for what the car's worth, I may as well hang on to it.