As I've stated in other responses here, we didn't start out with the intent of me being pussy-free. It's just that the way we played at the outset of our relationship (which started in May of 2017) she was doing most of the fucking (with a strap-on) and was making me wait, especially after she decided to put me in chastity. After a few months of that, we had a conversation about the fact that I seemed to be doing ok without pussy, so let's see how long it can go. I thought it was erotic af, so I've been pussy-free for over 6 years now.
The "bad," of course, is that I don't get any pussy. I'm in my late 50s, though, and I've had my share of pussy throughout my life, so to me it's a fun dynamic to play with. We do a variety of other things for me to orgasm (exclusively from being fucked with a strap-on for the past year or so). She gets her fill of cock from a variety of other men whenever she wants, she plays with women from time to time, and we have an "open legs" policy where if she wants an orgasm, all she has to do is spread her legs and I know what to do. So there are days where I end up going down on her as often as 4 or 5 times in a single day.
Would I love to fuck her pussy? Absolutely (I mean, technically I do - I fuck her from time to time with a strap-on). But we've gotten to enjoy a whole different kind of erotic relationship without me doing that, so I don't "regret" it at all.