I am not sure what to make of these strange new hybrids. VLT's, a slot machine that's really not legally supposed to be called a slot. right? The way in which you win or loose is generated by a pattern of bingo patterns or some computer generated win, loss, code?

We have the newest racino here in our area Miami Valley Gaming, notice its not called a casino. Guess that's not legal.
Its a nice building and I have seen some nice handpays and wins. But I have noticed that it seems to me that if you are playing in a bank of machines and your getting nothing
and a couple out of the banks is getting it all literally that does not seem to change, meaning you are screwed. It seems like machines are picked to be the winners along the way
and if you aren't in that, no matter what the bet, how long you play, you spin your wheels. Does anyone else know really how these compare to real slots?