I spend about an hour. Mainly because I get distracted very easily with Massive Muliplayer Online Role Playing Games...(i.e. Ragnarok, Runescape, Maple Story). Eh heh...yeah, RPG's rock, Super Mario RPG, Paper Mario 64, Paper Mario-The One Thousand Year Door, Superstar Saga, and Partners in Time are awesome. They just need to create another RPG for the Mario series. It's either I get sidetracked by MMORPGs or Mario Party 7.
I usually go on for about 45 minutes, but its usually the page thats on when I come home to my computer or am doing something like cleaning my room...occasionally I spend a few hours to really go through a deviant or two's gallery!