Things that make you think....hum. Here is the kind of thing I have noticed with online blackjack.

When playing at a B & M casino, real dealer table game, you double your 11 vs dealer 10 or 10 vs dealer 9. These are basic strategy plays. Nothing special. You are hoping for a 10 value card to have the best chance of winning (or ace in the 10vs 9 double). So when you draw a 4 or 5 as your double down card, you are probably going to lose. BUT NOT ALWAYS. Every once in awhile you will draw a crap card, thinking all is lost and the dealer with turn over a bust card (4-6 or something and still bust. Not often, but every once in a while...you get lucky.

I just never see this with the online games. You draw a 4 or 5 to your 10 or 11 as the doubledown card, you always lose. I never see the dealer draw bust card and break. Maybe it is small sample size or something, but I just NEVER see it.