I dig deep on Space Quest and my lady fucking absolutely adores the King's Quest series.
Aside from that, Zork I-III are addictive. And all it is is N, N, NW, N, W, W, N, USE LANTERN, N, et cetera.
Text adventure games were pretty sweet but I really can't think of any aside from Zork that were pure text. And MUDs; those are different.