If there's one lesson I've learned (or not learned) about microstock is, I can never predict or believe what buyers will buy. The second you think you have a money shot, think again... then you upload that one you're sure will be rejected, but you like it, and it sells 100 times in a year.
Congrats on that... simple sells, that's for sure. As long as you can get it past the reviewers who want to reject it for LCV, that is.
Stacey