yer, it just depends on the link as last year i was interested in bingo.com’s pr7 link for $1000 per month and yet i have tured down real pr8 (non gambling) homepage links for $150 per month as it was just pants with around 60 outbound links on it.
there isnt many gambling related sites thats a pr7 and im sure ive seen most of them, so i would be very wary of these 5 gamb related pr7 sites – make sure you check there backlinks and fake pr checker tool