And in 1996 there was 38 million shares. They seem to be buying back 1 million a year, that leaves a lot of room for growth. But, the thing about poker, it seems most games are hand dealt. Yes, there are one or two that use shufflers in poker, chumash casino for 1, but I don't know how well shufflers will work with poker. Shuffling one deck is not a hard chore. It only takes a few seconds, and with $1 tip per hand, no dealer is going to give up their $40 per hour job because they don't like to shuffle.
Also, it would be easy to stack a deck with a table shuffler so many patrons might grow suspicious of them if they don't see the cards shuffling.
If poker takes away from blackjack players, it may be a net negative. Blackjack will always use shufflers because shuffling 6 decks is a chore.