Memory hasn’t been a problem for me unless I get deep into the game without finding Desperado.
Eater+Keyhole+Datasucker is the setup you want in play by the endgame, and that still leaves a free MU for Parasite recursion. Crypsis doesn’t come down until its needed so its not a concern, and D4v1d is the same. Occasionally your opponent will rez enough ice to demand that more programs stay in play, at which point you might need to juggle a bit. However I’d much rather have to improvise occasionally than include bad cards like Memstrips, that don’t do anything on their own.
You’re more likely to lose because you didn’t set up in time because you put dead cards in your deck than because you have the money and cards for a big rig, but not quite enough MU to support it all.
EDIT: I didn’t realise Dan was reading this thread. I meant to say that Memstrips is a highly playable staple card in other decks like Reg MaxX, but generally doesn’t pull its weight here.