To be honest I would pay a maximum of $5 for just a new episode. What I would potentially pay another $20 (over the next few months) for would be new depth. For me this means more interesting choices to make (like new abilities), less inconveniences (like tracking forums during vanilla runs >_< ), and keeping the meta-game interesting (no improvements come to my mind). Most importantly, I want know that the game is going in a good direction. That is, instead of just giving me “more of the same” I can expect “more of better.” If I go on it’s going to be a long rant about what makes a browser game fun for me, so I’ll just keep it at that for now.