I'd say what sounds good or better is really subjective. You pretty much have to listen for yourself. Amongst tube or SS there are vastly different sounds so it is hard to break it into just the difference between SS and tube for sound. If the only thing that mattered was the exact replication of the sound to perfect specs we would all be listening to the same amp with the same speakers. Yet I can go into a listening room and compare a dozen different speakers and pick completely different ones as being the best than you would pick. For people that like to tinker I think tubes are more fun because you can continually change things and see how it affects the sound. Which is why they often get quite expensive. With SS you pretty much have to build a new amp. One being more expensive than the other depends on what your goals and methods are. Are you going to buy a $200 receiver at the big box store and be happy with it? Or are you looking at higher end specialty receivers? Are you building it yourself? Are you looking at a mosfet type SS or a cheaper chip amp one? I don't know what exactly 'tube sound' is. I think the term gets used to describe multiple different things so people that talk about it are often aren't talking the same sound. I'm ending up with quite a collection of different tubes which all have slightly different sounds to them. So which one of those tubes is the true 'tube sound'? All I know is that for around $600 I built a stereo tube amp that is so clear it puts the musician in the room with me and still occasionally makes me jump when the artist says something after a moment of quiet on the recording because I think someone is there. With good speakers connected to the amp the sound of a piano finally sounds like a real piano. Plus, I think, it looks cool and I can say that I built it wiring every part of it together myself.