Jokers are one of those funny things -- many decks don't have jokers, and in most cases you can lose the jokers and it doesn't matter. So why include them? And while we're on the topic, where did any of the cards in a deck come from? Why are there 52 cards, with four suits...
I think if you want to roll the rand several times during the user choices that is ok, but I also thought about it, and the way that some Blackjack decks go there are also more than one decks being used at a time, so the other part of that is that you could have say: Jack of...