Good guys that love tennis have lots of tennis buddies that are also good guys that love tennis. Unlimited play opportunities are the result, since as adults we're good for at most 3-4 matches a week. Typical text exchange, 'hey, you want to play Wednesday at 8:00?' ... 'no, sorry, already playing with [name], how about Friday?'
In my experience going through some leagues, and USTA ... there are a collection of, I call them, 'characters' there with various shenanigans. Sandbagging, cheating, odd behavior of all manner. Sure, there are good guys in leagues ... but when I think of USTA/league tennis, it is more for and by these characters ... and far from the center of the tennis experience for me and my avid tennis-playing buddies.