So I've figured that the JTM45 is the right amp for me. As always, I take a lot of time to make up my mind as I look into the minutiae. But I feel this is a legit question, I don't want to go amp trading later. I want to invest in this amp and be done with it. As I understand it, the differences between my preferred choices (Metropoulos, Colby/Park, Merren, Wallace) are minimal/if any variances in faithful recreations of the original circuit by different builders. The thing I wonder is why would I should I choose Park or Metro when they use Merren transformers and he makes his own JTM45? I'm not interested in aesthetics, I just want the best lovely clean tones a JTM can give as well as that Beano breakup. I'm also looking For the great feel of the amp. If they are all such similar builds within the same price range, what should I be looking for given that I cannot play any of them beforehand?