A larger part of me than I'd like to admit wants to buy a complete-in-box copy of the Famicom version of Bubble Bobble 2.
Bubble Bobble Part 2)--which I tend to consider inferior to Taito's original effort in every possible way. Two, complete-in-box copies of this game can be a bit "pricey"--as in, I could either buy Bubble Bobble 2 at some point next year or I could buy a 3DS XL (assuming prices for this rare title are trending low, that is).
I severely doubt I'll ever go through with this rather harebrained scheme, but you never know. I've done some completely bat-shit crazy things over the years because of cute box art, after all.
See also: Other reasons I could be considered an 'eccentric' (aka bat-sh*t crazy) gamer