You guys are missing the point. Whether it takes a day or a few days or a week to get your money doesn't matter. When you invest in the market, it is generally a longer term investment. There could be things that happen that cause the stock to take a short term dip. Maybe some lower than expected earnings, or a negative article in one of the major business journals or magazines or mabe some worldwide event or occurance. You invest long term to be able to ride through this type of short term negative cycle. You want to choose when the right time is to get out of the stock, not be forced to do so at an inopportune time by a few bad blackjack sessions. I agree with blackchipjim. Your bankroll is for playing blackjack and the majority of it must be very easily accessible, without any kind of penalty for accessing it immediately. The stock market simply does not fit that bill.
I actually have part of my bankroll invested in real estate. It wasn't really something that I planned to do, but when I purchased a property last year, I had to put down more of a down payment than I wanted too, because I was unable to verify any kind of income other than blackjack play. So a small portion of my bankroll went to this downpayment.
I figure that in the event of a horrible run at the tables where I needed to get to the last portion of my BR, I could use that investment as collateral, rather than terminating the actual investment at an inopportune time, as would be required with stocks. Right now, obviously, real estate is not a good investment, so I am not realizing any kind of return on that portion of my bankroll, but hopefully at some point in the future that will change.