The system deserves BC, it's a real shock that Sony ever pulled it to begin with for only a slight price drop. Outside of MGS4 right now, my only real playtime with the PS3 in 2008 has been with PS2 titles...Persona 3: Fes, MGS1-3 collection, and I still plan to buy Godhand one of these days.
40gb is too small though. My 60gb drive is already down to 20gb left and all I have on the drive are installs from games and a scant few demos(DMC4, Motorstorm, GT5). MGS4, Uncharted, RR7, Resistance, HSG5, Ninja Gaiden Sigma, R&C, and Heavenly Sword all take up nearly 2/3rds of my drive just to play them. This is my entire library culled from a year and a half of ownership. I can't imagine adding all the multiconsole releases like GTA4, CoD4, Lego games, etc... that I wouldn't be playing on 360 on top of those.
The expense of the 80gb drive can't be THAT much of a premium.