I had my (only BP) normal male in a V-70 tub (50 qt) for about eight or ten years before moving him into an AP T8 (4' x 2' x 1'). The larger enclosure seems to be less of a 'snake storage unit' than the V-70, and more of a "habitat" just based on how he acts. For reference, I keep most of my snakes in tubs; I'm not anti-tub in any way whatsoever.
I kept a pair of adult blood pythons for a handful of years (eventually, they sort of wore me down...they're a lot of snake to deal with) and for a while I used Xmas tree tub enclosures. I found those hard to deal with and moved the bloods into AP enclosures after maybe a year in the Xmas tubs.