Gangle,
Really only have one if you have to.
I've had two. Both because they were needed. The second of which was because I had grade 4 placenta previa and had no option and had to have a blood transfusion afterwards.
C-section is a major surgery and not one I would ever wish to go through purely because I wanted one.
The recovery time is very long. Your stomach muscles never regain full composure and you're often left with a horrible 'lip' above your scar.
Once the drugs wear off it's absolute agony and you still have a baby to look after.
They make you sign a disclaimer in case your bowel or bladder get punctured and that is just for starters.
You feel like crap and are too ill on drugs to know what is happening for the first 24 hours.
Your baby is likely unready to come out (planned of course, not an emergency c-section) and invariably the sucking reflexes aren't there and they end up getting yellow jaudice.
It's up to the individual, but I'd give anything to have at least had a go at a VBAC with my second or even a vaginal birth with my first and 'nature' denied me that right. I don't even know what a contraction feels like. Don't do it unless you have to, it's major surgery and it's pants.