Sorry to bump a relatively old post, but this and Batman Mask variant were the only ones I bought of the movie poster variants. Just found two more copies of Batgirl for $6 a piece today in a record/comic store. Also, a few months ago I found Prince: Alter Ego 2nd print in a 50 cent box, and a copy of Prince: Three Chains of Gold for $10 at a show this past Saturday (I guess these are technically copper, but whatever). At the time I bought Three Chains of Gold there were only two listings on eBay, one for $170 and one for $500, and plenty of listings for the other Prince comics. I guess that one's the more rare?
Also, to echo some fairly recent comments, very happy the first Kate Bishop is doing well. I'd buy any copies of Young Avengers #1 I could find for $5 or less, and I always buy Young Avengers Presents #6 any time I see it for $10 or less. Hopefully, she can get her own book somewhere down the line, but I've loved her being paired with Clint in his book over the last handful of years.
As well, what is more sought after, the We Are Robin #1 Duke Thomas variant or Batman #21 regular edition?
I found my high grade copy of Batgirl #40 and sold it for $40 on Saturday morning. It looked like the market was getting flooded with copies.