Ok, I've only read about the first approx 50 posts so I don't know if this has been covered but here is my tuppence. I'm an experienced labour ward midwife.
Midwives couldn't give a stuff about the price of epidurals. This is not a factor in anything.
Research shows that epidurals DO NOT cause an increase in caesarean section rates. They DO however cause an increase in instrumental births and episiotomies. This is partly due to the fact that they relax your pelvic floor causing the baby to adopt a suboptimal position in your pelvis. It is also caused by the fact that you are generally just sat in bed which compunds the impact of your pelvic floor being relaxed. This is part of the cascade of intervention. Suboptimal positions can lead to raised maternal temps and the use of antibiotics etc.
You have to have IV fluids and ideally a catheter with an epi so you are more restricted in movement. Most trusts also insist on continuous monitoring so there may be more cables with that making it even harder to move. Some trusts are allowing a degree of intermittent monitoring though which is something to ask about.
Research has shown that they don't increase the first stage duration (getting to fully dilated) but they do prolong the pushing stage....partly as you can't feel to push as well and partly due to the position of baby.
They are pretty safe and the risks of nerve damage etc is tiny.
There is a significant amount of research which shows that women labour best when left alone and with as little intervention as possible. However, this isn't what a lot of women want so as long as you understand the potential implications then you should be able to have whatever pain relief you choose. I would just say, see how you go and ask for one when you feel like you actually need one, not just in case.