I also think I have a different line in the sand for what I will pay
for mmpb and ebooks.
Additionally (and it may be a French specificity), the publisher which has rights for the «trade paperback version» (and the ebook), resells the rights
for the MMPB to a secondary publisher (sometimes in the same publishing group, but not always).
They think people will pay more for an e-book than they will print copies — and let's be honest, the $ 14.99 for this e-book is more than we'd pay
for the mmpb version.
The percentage I'd get
for mmpb or tpb is less but the agent's cut remains the same.
Not exact matches
I will observe that at volumes of 80K +, the narrower margins of
mmpbs (and even tbps) more than makeup
for the lack of hardcover margins, so I don't think the underlying math changes so much.
Romance also has much larger numbers than sf / f — I recall a romance writer friend of mine complaining that her latest
mmpb release «only» sold 80,000 copies, and wasn't going back
for a second printing.
Cost really is an issue
for me and I desided I could buy a lot of books
for the price of a Kindle, especially since I buy most of my reading material in
mmpb.
I've been thrilled with ebook prices as
MMPBs are often $ 15 here and hardcovers $ 40, so I've had to be a lot choosier about buying books brand new
for quite a few years.