So, I bought the theme a year ago. As of a little while ago I am now removed from the support forum. I understand that is part of the deal, however I do think there should be a simple way for past customers to download older updates that are timestamped prior to the expiration of their support. If there was a very recent update, I may have missed it though it technically could have gone up before my expiration.
As a sort of review for the theme/support:
Over the year, the theme received two updates that I can recall clearly. One that fixed AJAX loading and goto latest post, and one that addressed some other lingering bugs. Overall the AJAX update was the one I appreciated the most, but otherwise I didn't notice much change from version to version. Now, I love the overall style of the theme. I just suppose I expected a little bit quicker turn around when the one year timeframe I have to download in. Only two (or three) updates was a bit surprising given the relatively high price for a theme.
With that kind of price, I can't justify buying the theme a second time only to get 1-2 minor tweaks to the theme at best, and support. Now, to your credit, I found yours and others support in the purchased forums to be very useful when figuring out the conflicts between SMF4M and TinyPortal. But $20 a year for that is just unsustainable. If you offered the ability to extend your updates for a much lower cost perhaps, or had milestones for future major features within the next 1-year, a discounted re-purchase might be negotiable. But as it stands, I appreciate the product you sold. I hope you take my advice under consideration.