In reply to MischaHY:
I sympathize. There's a scheme in the UK now called Move GB where you pay one monthly fee and then use it to get into loads of different sport places, from regular gyms and yoga to climbing walls. In Sheffield The Foundry and Awesome Walls are both signed up but sadly not The Works (yet?), which is really the best bouldering venue by a long way.
Having choice in walls without having to pay for several different memberships is great idea for climbers who want to climb regularly indoors without spending loads of money.