This seems to be the most recent suggestion post concerning decks so I figured I'd post this here rather than start yet another thread. I agree that it would be more convenient to indicate quantities of cards rather than have to create one individually. However, what I would suggest is the option to indicate how many of a type of card is in a deck. For instance, if I wanted to add jokers to the regular deck of playing cards, instead of creating two individual joker cards, I could make one card and put a "2" into a quantity box.
A few more suggestions I wouldn't mind seeing in addition to those mentioned here:
*) The option to set the default dimensions of a card when it is placed on a deck. Or, at the very least, make the default dimensions the same size as the image in pixels. I'm not sure why my cards always want to be stretched when placed on the table, or why they stretch to different sizes depending on whether or not they are drawn from the deck or a player's hand. (could be a bug, for all I know)
*) In addition or lieu of the above suggestion, it would be convenient when setting the dimensions of multiple cards that are highlighted that all highlighted cards have their dimensions changed automatically. Right now it seems like I have to do one at a time. Presumably this suggestion would apply to all elements on the table.
*) When creating a card, it would be convenient if instead of having to replace the name of "New Card" that the text box automatically cleared anything it is clicked on and the current name is the default "New Card". Not a big deal, but it would add an extra bit of polish to the site.
I just want to close by saying that I started using Roll20 yesterday and so far I am absolutely loving it. Thank you for such a great product and for making it available to the masses! I wish I'd known about you when you were still at the kickstarter phase.