You're not imagining things, and it's not chocolate. It's high resolution and natural sound. I'll take a decent tube amp any day. In the high end world tube amps and preamps still rule. The vast majority of the best systems I've ever heard (some at CES) were driven by tubes. They can be expensive (but don't have to be), definitely run hotter and use more electricity, and there's a bit of a learning curve to owning them, but it's not difficult and is a well rewarded effort. With the popularization of Chi-fi tube stuff, amps like Wilssenton, Reisong, Yaqin, Nobsound, and others are surprisingly affordable.