Looking through the photos last week as well as catching recent episodes, I made the observation that the three "small prize" games (Secret X, Cliff Hangers and Plinko) are rotated almost without fail in that order so that each of those games shows up in every third taping, as well as (I believe) every third aired episode even though they have shuffled the order in which the episodes are aired. So Secret X was on Tuesday's show, Cliff Hangers on Wednesday and Plinko can be expected tonight. Then it will repeat. It is interesting that the first aired Hole In One playing used small prizes before reverting to 'variety/grocery' items.
They could really do with a few more 'small prize' games. Given the preference for games without any/many electronics, I'd suggest that some of Shell Game, Switcheroo, 5 Price Tags, Master Key and Punch A Bunch could be added to provide a bit more variety. The pricing part of "Rat Race" could be adapted to suit Let Em Roll as another option (Let Em Roll's pricing portion is now used on "Walk The Line").