I find myself in somehow disturbed when visiting some (big) online casinos and there is hundreds and hundreds of slot games.. presented just like that ..
This is not resembling in anyway the slot machines in a (real) casino !
I thinked of what if making an organisation like, for example making rooms for each game, with a limeted number of slots, say 10 for example. every (machine) identified apart, and every one with his own progressing jackpot,
So for example when entering the room you have to choose from the available (machines) to start playing !!
We can't get the complete satisfaction of an offline game while playing it online for games like slots, dice,roulette,etc but the outcome of the online games are somewhat resembles the offline real casinos.Making limited slots will decrease the earning opportunities for the gambling sites so I doubt they would but in future we may have slots like you are looking for but certain amount as minimum bet.