The variety of lovely ladies and the experiences I have had make it worth it. It also provides me with a level of control in my personal life I might not otherwise have - I am always 100% workplace appropriate, never fall into the trap of hooking up with a co-worker (and I've had opportunities) or trying to have an actual affair, etc.
I have actually made a couple of legitimate friends from this as well, both of whom are the kind of fantasy girls (for my personal taste, in terms of ethnicity and body type) that a younger me couldn't dream of going on a date with, let alone having night long GFEs with.
Variety is the spice of life. I love sex with a beautiful woman it's my drug or addiction I guess. Just fucking for sport with different beautiful ladies with no strings attached. We both know what we are there for. Then after you go your way and I go mine. How can you not love that.
Practice, practice, practice.
After several long nasty divorces, I decided I'd rather rent pussy than buy rings.