Not so hypothetical bankroll question (taking a shot)

So, I have about 450BB for 5/10, which is my normal game. 5/10 is tight this particular night (minor site where I have good rakeback), so I'm looking at the 10/20. I find a really juicy game, I mean 4 guys with VPIP > 50. A couple in the 70 range. Table average, with me included, is over 50VPIP.

I'm playing, up maybe 15BB and 3 of the 4 loose players decide they want to play 15/30 and quit and move. I bring up the 15/30 table and watch for a minute and to my amazement, it's just as juicy. Along with the 3 that moved, there's another loose player about the same (45VPIP).

So...I want to sit down, but it's way past my bankroll (I'm at 150BB for 15/30). In this situation do you sit at the table? If so, how much of your bankroll do you risk?