I bought mine with 70 games and 5 controllers + 7 memory cars, 2 limited edition games 2 guitar heros and all cables for $30 last year... Just saying haha, they aren't worth as much as you think
BTW. a phat PS2 isnt worth 10 dollars in any condition. and you can hack them to play burnt games for about 75 cents (cost of the shitty game to do it with)
most i would ask for all this in your case? 30 for rockband stuff. 35 in all.