With the gloating thing I think it's often insecurity.
I felt like I'd failed/cheated when I had ds1(8 hours) with an epidural - friends had had 30 hour labours, caesarean sections, etc and people just looked at me and said 'blimey you lucky cow' and I felt awful. Butthen I felt awful anyway as he was born to me on my own with no partner. So I already felt like I was cheating to have him. I hadn't donethe whole, be loved by someone, get married, have a baby together. I didn't deserve him. It as complicated.
So to have ds2 at home with nothing, not even G&A (which was available but I declined as I don't find it helpful) felt like an experience I was glad to have - in a way - though it bloody hurt, and was traumatising, I felt like I'd 'achieved' something, I knew what it really felt like and for once I had done something 'properly'.
That was my own, personal, screwed up self feeling that way. Six years on and having just had my third and final baby, I went for the epidural. I knew what the pain felt like and didn't want to have it again, and by the time they agreed to it I'd done most of it - he was born about half an hour later. But thank God for that epidural.
Now I've come full circle. I'd say unless you are a masochist with something to prove, like I was before, then take the pain relief - just blooming take it! It is not shameful, or wussing out, those are constructs we create in our own minds from our own feelings of inadequacy. Labour is horrifyingly painful, unless you're very lucky/know how to manage the pain (I didn't, at all) and I've hidden the conception topic on here because every time I see someone TTC, all I can think of is 'are you INSANE?!'
The only down sides I know, for me, are the side effects and the being strapped to a monitor when you want to be on all fours. Nothing else - in fact the improvement in the epidural in 10 years was astounding. I could feel everything.