i played one in a studio last year. Nice amps - but i didnt think it sounded as good as the originals i had played. it was actually very similar to the 70's soild state ac30 i sold a few months ago when played clean.
i tend to be a bit of a vintage snob when it comes to brand new amps from the big names though - they all seem a bit more lack-lustre than i expect!!
I think along similar lines, though I'm not a purist by any means, I just appreciate the sound of those older amps, and if I had my druthers I'd take a vintage every time (but then again, who in their right mind wouldn't?).
Vintage amps and guitars have skyrocketed since the late 1980s (and it seems skyrocketed again due in part to eBay and the means to acquire any rare gear for far more than its worth), and companies have re-visited their infamous models, at prices that almost border reasonable. That's a lot of money for an amp that isn't really the amp you're really after.
Still, no matter what guitar rag you read, just about everyone used (or uses) the Vox AC30 or the Fender Twin Reverb in the studio, making them the industry standards. Even the models today, if they're not comparable to their vintage counterparts, are still the most sought-after in terms of reliability. I look at a lot of websites that sell botique amplifiers, but the prices are ridiculous. I realize they're handbuilt in most cases, but the average joe (i.e. me) can't afford one of these amps, which are usually carbon copies of vintage amps from 50's-70's. So that's the alternative. Pay out the arse for a modern redux, or pay a little less for the real thing (not including money to get the old rig serviced).
Bad Cat makes some cool-looking amps, yes. Will I ever own one? Not with my health condition.
Now, if you want something to shred, I'm sure you'd be better off with something that produce a wall of sound like an old Marshall Plexi, but an AC30 is a good amp. It's a stalwart of the industry, and that can be a good or a bad thing. If you want to run with the pack, or get the sound players got for decades using those amps, keep it.
If it doesn't suit you, there's no point in keeping it. Somewhere out there there's a perfect amp for everyone. I don't believe in true love, but I believe in the perfect amplifier.