Thanks for posting this. I tend to agree.
My 13 y/o is playing a men's league match once a week (sometimes twice). You ought to see the fabulous junk these 4.5 guys throw at him. Lots of serve & volleys, one handed backhands, low deep slices, crazy *ss serves....it's great.
One lesson & one little drill a week.... along with lots of match play (with weaker/stronger/boys/girls/men whatever) & a tournament every 2 weeks or so.
Spending about 1/3 as much too. (which is a consideration as well)