I would like to suggest an official method of allowing developers to implement a 'try before you buy' option to their paid resources. Some code which enables the resource for a limited period of time (decided by the developer), and then disables it until purchased. Pointless me even considering how this might be implemented cos Mike & Kier would know the best way. I think this would be a very useful way of increasing addon sales. I think lots of people would like to try addons to see if they work on their forums or not, but are put off by even a modest purchase price.