Hey thanks for reaching out, as well as being a long term customer. We currently have the 50 project limit due to the fact that each project can contain up to 50 thumbnails, meaning a total of 2,500 thumbnails. If we were to bump up this cap, it's possible that our storage cost would exceed what we charge for a subscription. It is possible that we could increase the limit on our Business plan, but sadly the Solo plan has to maintain that cap.