I was up at Blue Water on Spring Break and hit the flaming red 7's on the first pull! Only had 2/3 Quarters in, though won $125, and while waiting for the quarters to pay out, played the machine next to it, and on the second pull hit another 100 quarters.
This doesn't always happen, a couple of times I came out busted broke.
I prefer Blue Water though over laughlin for gambling. The odds seem to be in my favor, at least for me that is.....