Wow... Just... Wow...
Really? I build custom furniture, both residential and specialty commercial technical furniture. Not meaning to come across with the arrogance of the OP, but my work is very high quality designed to last for generations. I use Kreg joinery a lot- it absolutely has its place it both types of furniture. To suggest that a specific tried and true fastening system should not be used, or a piece is not high end because it uses a specific system displays an arrogance almost beyond comprehension.
Bill R., somewhere in Maine