One of my neighbours, a million years ago, was obviously addict to the slot machines. He would spend hours spinning in a nearby bar (these machines are allowed in bars in my country of origin) and my take is that he would spend a fortune on it. Once, I passed by and I overheard him saying "I am going to teach this machine who is in charge". It sounded like he was attributing some short of conscience and life to the machine and though he could "beat it". I have observed that many people that gamble are into that type of thinking, that is, it is me against this code and this machine and I can actually break the code and win.
I personally do not play slots, but do you think that is why people like slot machines? Short of breaking their code?
This is what happens if you spend hours in front of the machine, you breathe life into it and treat it like human that you can conquer, but I don't think he can break the code, of all gambling games, slots are one of the games that it's hard to beat, the house edge will always pull you down.