RE: Big changes to RENTALS and BIDS

I would appreciate some more functionality for card-owners as well -- for example, I'd like to limit the maximum rental period. At the moment, someone can rent a card for 20 days, and cancel at any time if the price drops, but if I need the card, or the price increases, I feel like a Scrooge booting them and placing it back on the market at a higher price. Many times I rent out my high-powered cards for a day or two while I'm too busy at work to use them.