I am in the same boat currently pregnant with baby no 2 and as I didn't do NCT classes and wished I had due to the social side need to do something this time. Cost and ethos of the class have stopped me signing up so far.
Has anyone heard of Lazy Daisy classes?? This is an alternative to NCT with a combination of techniques and is active birthing based but also suitable for elective c-sections as not exclusively pro natural birth. terms run for 6 week at a time and is much cheaper at £54.00 for a term. Available throughout the UK but you can search their website for exact class locations. Might be worth a thought?