I use Linux from 1997 and OSX from 2005.

Indeed installing mysql on ubuntu is simpler and faster then on OSX. But installing major packages only happens that often.

What happens much more often is having to constantly fiddling with your Linux machine for it to continue working flawlessly. Upgrades tend to break things, external devices not being supported, etc, etc, etc. You need to constantly invest time in keeping it going. Much less so on OSX.

For me OSX is a Unix that just works and has a beautiful GUI.