Being able to get a 50g brute with a lid, that basically has the same purpose (maybe doesn't look as slick) but yeah, go bigger if you can.
I've seen in the past those 330+ gallon square containers with the metal frames on Craigslist advertised in "farm country", have been tempted quite a bit until I remember one important feature, the smallest dimension is 42" so there's no way it'll get through any doorway in my house, and I'm not willing to sacrifice that much foot print in my garage (I mean I live in SF for crying out loud! The fact I have garage space at all is amazing!)
Now if you really want storage get one of those 300gallon Rubbermaid stock tanks, I mean I just so happen to have one that I want to get out of my house and would be willing to accept any reasonable offer