Premium point systems work if customers work well if the customers think they are getting value. The Prime club doesn't strike me as being based on that as there are no benefit points to be cashed in for the more you spend. The main value was the Prime items; a select set of items that were sold that were just textures (*looks at competing store club with disappointment) or clothes with just one texture given an arbitrary higher price to give the impression of a greater value of savings (*looks again at competing club with disappointment again). There were (and still are) some top notch items. Granted, it wasn't a vendors whole store, or anything like that.... There were (and still are) coupons that are at a somewhat higher discount than regular ones, as well as space for uploading more images. There also was a cash back savings of 5% based on how much you spent (which had to be $100 or more), which is kind of similar to Premium Points (in the idea) but only really of value to those that shop a lot.

Prime could have a members preview of a set of sale items before they get posted to the store (which if the items are at full price, that's really not a good idea). They (Renderosity) could make a deal with vendors who participate in a sort of Prime Members decide on product build. I imagine the vendor should get a larger share of their money as they are doing the work, but if the Prime Members have input into a product they want (ideally with quality work) and intend to buy it could be very lucrative in sales (assuming the sales price wasn't marked up to unreasonable amounts). 

The problem is customers prepay for a year for a series of perks which are not the same as previous years. Most of the information of the changes came after (or exceedingly close) to when renewals were due. In not Renderosity communicating changes and new (if there are) benefits very well, many, many Prime members feel burned. That is practice guaranteed to lose business.  The store has already lost some business in people waiting to see (and learn) what will happen next.

The dust settled, thinking "what a fine home, at least for now" not realizing that doom would soon be coming in the form of a vacuum cleaner.