I'll try to keep this brief, but please read about my unusual situation before voting/commenting. Thanks!!!! I currently have an ancient ('90) GK 400RB head running through a Sansamp BDI pedal into an ancient ('90) Hartke 410XL cab and an Avatar B212. My situation is unusual in that as a result of my daughter's serious medical problems, I do not play with a group nor am I likely to perform in public any time soon. It sucks, but them's the cards life dealt me, as they say. As a result, about 80% of my playing is actually done through a Tascam Bass Trainer, while she sleeps. I don't get to play through the rig much, but when I do, it's really fun. I am looking to upgrade my rig in a piecemeal fashion, getting one nice piece at a time. I have come into some unexpected money (around $600), and am considering upgrading my amp. There are some unusual factors, due to my situation: 1. Weight is not an issue. My rig is unlikely to leave its spot, possibly for years. 2. Power is not so much an issue, except in terms of overall quality. I don't need to play very loud to keep up with my stereo. 3. I mostly play through headphones because of my daughter, and when I do get to plug in, it's often not for long (maybe 15 to 30 minutes) at night. This worries me as far as getting a tube amp, because I don't think tubes like to be turned on and off a lot. 4. My GK 400 seems to be in the most need of replacement, as it is starting to make terrible pops (basically, all I need to do is tighten up the wiring on the input jack), but it's making my wife support my desire to upgrade. In some ways, since I use the rig so little, it might be more fun to spend the money on yet another bass, or new speakers for my living room (the ones I play along with), as they are really old and tired. However, my rig is aging, and it would be nice to be able to power both my cabs with something better than my old GK400. I have my eye on a Reverend Rumblefish., which seems like a fun bass to add to my collection. All comments/advice greatly appreciated.