I've been using the tram in Nottingham to get to and from work for about a year. Instead of paying for my fare onboard, I buy a 10 trip pass from any shop with PayPoint facilities. The price has always been £10 so each trip costs £1. If you pay the conductor for a return journey, it will cost £2.40, making it more expensive than my approach. Another reason I choose to buy this type of ticket is because the conductors rarely stamp it meaning I get some journeys for free :D.
As of 28/04/2008, the prices across the range of tickets will go up, making my pass £13 (a whopping 30% increase). My first grumble is that this is a huge jump on what was once a value-for-money scheme. The return ticket will only go up to £2.70; just a fraction more than 2 trips using the pass! My second, and more important, grumble is that I bought one of these passes on 22/04/2008 and was charged the new price of £13. I wasn't aware of the planned increases at the time so I paid the shop assistant. After contacting NET (Nottingham Express Transit) about the issue, it emerged that I'd been charged too much too early. NET spoke to PayPoint on my behalf who kindly gave me a 1 week pass for free.
If you've also paid the new price before the changeover date, submit a complaint on NET's website but remember to keep your pass as they use it to gather information about the transaction.