Just for illustration:
You buy the "buy in" feature in Sweet Bonanza slots and the fruits start to drop randomly along with max 100x multipliers in 10 free spins. So with putting $2 in each free spin I got a chance to multiply my $2 to $200 less than 5 minutes. The adrenaline will be high and this is what makes slots so different for both entrainment and house edge means.
But with 99 % probability you will lose all your money. I agreed that adrenaline will be high, but my question is more about
"Will it be higher than in poker or any another game where you need to think"? And here i doubt about the right answer.
that is called risk when gambling because no one can guarantee that slots or dice still have a very high risk and cannot guarantee victory for you, stay alert and control your emotions so that you are not affected by the conditions when gambling.