Is it worth it? That all depends on the man and where he is at in life. I've done it all. Over the past 20 years I've had a marriage, LTR's, fuhk buddies, new girls every 2-3months, $trippers, one night stands, etc. There is good and bad to it all.
It was worth it because of the good times and good memories. If you aren't enjoying it, then you need to find something else to enjoy. You should definitely try everything at least once, otherwise you won't ever know.
Here's what I learned: the better the woman, the more enjoyable she is long term. If you feel the juice isn't worth the squeeze you might try associating with better women or do something totally different.
But you are right, most women aren't worthy of long term commitment, even fewer worthy of marriage. My mom raised me to know what a valuable woman looks and acts like.