I wouldn't. But it's not like I'm the only person who would think of this. So, really - are lost book fines low enough to incentivize students to steal them, ship them to get scanned, and pay the fine?
The normal fee is the cost of the replacement and a processing fee (University of Maryland and most of the public libraries I have dealt with). When I was at the university they would accept a replacement that you bought, but still charge the processing fee to get it back on the shelf.
Especially in the case of required textbooks.