We visited Polperro for an afternoon and I think it fair comment that it is probably one of the most expensive places you could ever want to visit.
To get there you park in a huge car park, with an exhorbitant charge, an attendant walking around checking cars for tickets. You can't actually see anything from the car park so we asked how far it was to the harbour. The car park attendant replied "about ten minutes". In fact, it took about ten minutes to walk to the other end of the car park and about 15 mins to get to the village. Not great if you have mobility problems....! There is an over priced horse and cart but decided not to both due to the cost.
Polperro is definitely pretty but everything is so over priced. Each restaurant sells the same as everything else and nothing looked very special. Most people just bought a pasty.
A boat ride was reasonably priced however and was the only saving grace.
The over-priced car park set the tone for the rest of the day. Expect to pay double what you would elsewhere and you won't be disappointed.
It's off the Spain for me next time.