Yeah me too. I am going with the 40 because it has the front end of the 500 which is my gigging amp. My 25 is great for bedroom practice, but I can't dial the tones like the 500 and I would like one I can use not only for personal practice, but for smaller gigs. I actually used my 25 for an acoustic gig and it did well, but I'd feel more comfortable with the 40.I am doing a kitchen remodel for my wife's Christmas present, so my budget is blown, this sucks because I REALLY want a Rumble 40 or Rumble 100 for a lower volume practice, smaller gigging amp...
I have promised my wife a nice camera for Christmas and we are putting wood floors in the living room, so this may be a bigger stretch than I can do. That's the only reason I have placed the order yet. I have to go crunch some numbers tonight.