WRONG.
We have Hoodoo, Cranetop, and a slew of other large maps on our main payload server, and it stays full just fine.
Invest in a fast download server, and it's not a problem. Hell, we just put Frontier up on it's own server last night, and it's maxed on population right now - at 93.7mb!
I say make em' as big as you like (as long as they're optimized). If they're solid maps, they'll build a following.
Whilst this is very encouraging stuff, it sadly doesn't hold true for many servers at all, the No Heroes server is a rare exception where dreams really do come true. Somehow you've managed to create a group of servers that stay full all the time seemingly regardless of the map, it's a pretty incredible feat, and for that I'm sure pretty much every mapper to have their map on one of your servers must either be incredibly grateful or completely oblivious to the fact.
:thumbup1: