I'm a bit of a newb in the gear dept so please bear with me. I was pretty much set on purchasing either the Fender Champ 50XL or Boss Katana 50 as a practice amp for my apartment. But I've also been looking at some of the desktop amps like the Yamaha THR, Vox Adio, and Mini Katana. A desktop amp would be something to consider for the smaller size, and since I'll likely keep on relatively low volume while practicing. The question I have is why are pretty much all the desktop amps $100-200 more as they are smaller and less wattage (and some case battery only) amps. Are the tones stronger and cleaner than a bigger solid like Champ50XL or Katana 50? What would you consider buying?