The second paragraph is confirmation bias. Is it merely a coincidence? Is it really totally random even though it appears otherwise? Or, is there something sus going on here? I have seen these patterns of play time and time again. So, it is much easier to observe how dramatic these questionable fluctuations are. Which of course they want you to do anyway. It's almost as though it has been somehow hardwired into the program to give you those smaller winning hands before losing it all so as to give you hope and encourage you to put more money in. The second pattern while playing that I notice is that when you get close to running out of credits, the machine suddenly starts to spit out a bunch of smaller-sized winning hands before finally taking it all back. Then, if and when I hit a straight flush or a royal with a duce, this is followed by a run of very poor hands totally devoid of any decent cards to hold which promptly sucks back that decent win and then some. Basically, keeping even at a steady pace. For example, I am hitting a pair of kings or better and three-of-a-kinds. I have noticed what I believe are a few unusual patterns to the hands dealt.
My favorites are Duces Wild and Joker Poker.
I frequent the 7-11 which is a short walk from my home and has Game King machines that offer video poker options.