In the eyes of management, no diva is really a draw for the fans. That's not a personal opinion. It's just how WWE looks at their female talent. The two biggest divas in terms of popularity at their peak were Sable and Trish Stratus. You could say that maybe they were irreplaceable in some ways, but the WWE machine moved on just fine when it was their time to step away. AJ is comparable to those two because she was working in a main event like storyline and she was the Raw GM too. In terms of merchandise, we don't know the numbers for sure, but she probably does pretty well and sells the most among the divas. It's probably not that significant though. A lot of divas have short careers. Trish was 30 when she stopped. AJ's good friend Kaitlyn only lasted three years. Others like Michelle McCool and Beth Phoenix retired at young ages too. That's why WWE won't invest too much time or money in them. They know they won't last as long as the top guys that can wrestle for 10-15 years at a high level. Fair? No, but that's how WWE runs things.