A small charge for getting rid of pics you don't want

So - I ate through 25 images in no time.  But, I only kept 5, because they were the ones that fit what I wanted.  

Maybe for a small surcharge- $5.99 a month instead of $6.99 a month, the ones you don't use will be thrown out and not count against your monthly alotment.  I would still likely get through 100 generattions a month, lol.