I was very interested in Carvins for a long time, but I never got around to buying one.

What guitars do you have at the moment? It kind of sounds like you just have the gear bug, which helps you explore but doesn't usually end with good results. I personally would just try to get everything running properly with the existing guitars and then sell them all before buying a nicer one. But that's not going to be a popular opinion around here.

Also, what sort of amp do you have? Getting a quality amp and spending $15 for a couple of pots might yield better results.