In reality, removing tx fees isn't fun at all in the case of bitcoin.
Removing tx fees would only result to less miners processing transactions for the whole network. Tx fees are only present if you are depositing your btc into a site, but most gambling sites nowadays cover up the fees when you withdraw. And besides, the fees in general doesn't amount to even a couple cents, so why is it a problem at all?
The deal with bitcoin gambling is that anyone can try their luck without the hassle of submitting identity verification or whatsoever.
But we are talking about gambling here even if there are no transaction fee there are tons of risk in gambling and you can never predict what is up for you when you play it, so other people would still want to mine for bitcoin instead on trying there luck with gambling, but others that can not afford the expenses on mining rig and the electric consumption cause trying to get a bitcoin from risking in gambling.
Transaction Fee is so insignificant that in reality no one cares about it. The only problem of bitcoin network which is problematic for casinos, that I can think of, is ability to double spend.
Some casinos which offers instant deposit feature can be susceptible to this exploit.
Yup! especially when gambling sites now a days can truly be fast with their transaction and they would only play right straight with the players wallet instead of depositing and changing money for chips! in these kind of gambling they will use bitcoin right straight to the game itself.
