I just received a message from eBay that told me that I could list 50,000 BIN items for free in March and April.
Interesting. My concern is that I will have to list them as "Good Until Cancelled", and then have 50,000 items roll over to May and get charged a listing fee for each of them. (Not that I would have anywhere near 50,000 items)

I didn't see anything in the message that addresses this potential problem.