How much cheap cheese (ugly aesthetics) are you willing to accept?
How many amps are you willing to stack and plug?
What kind of specs are you willing to accept? SNR 100dBA vs 120dBA? Crosstalk 50dB vs 100dB?
What kind of name/reputation (pride of ownership) are you willing to accept?
Some people want ATI (or their many clones), Parasound, Bryston, Anthem, Adcom, etc. It makes them feel good or proud to own them.
Some people will never want to own brands like Emotiva, Outlaw, Monoprice, Crown and other pro amps. It's their money. Nothing wrong with their choices.
Same reason as some people will always want to own "separates" like Pre-pros, preamps, etc., instead of AVRs.
But as already asked, how much is "cheap"?
Crown and Yamaha pro amps?
Are the Emotiva amps cheap?