Exactly, bitcoin is best forever for online gambling, and the good thing is that now bitcoin price is not a high we could play it easily in a little number of bitcoin. Personally i always like bitcoin and bitcoin is the main reason for the gamblers who start bitcoin online gambling and bitcoin has a credit of it that this a one and only crypto who promote the online gambling sites and now in all over the world people play online gambling because of Bitcoin.
If you compare December price then yes the price is not high but if you compare from the beginning $7k is a good price, I think nobody will ready to lose their bitcoins in gambling. I agree because of bitcoin online gamblers are increased and online gambling sites are making a good profit. But now trend changed that's why all casinos are offering the player to play gamble with altcoins.
Yeah, I am also agree with you, now altcoin has overcome on bitcoin, but still bitcoin is one and popular crypto in gambling market and mostly gambler who take turn with altcoin but they not properly left the bitcoin. Even now a days playing bitcoin is more profitable because of its price down. But still agree with you, that online gambling trend has been changed, now gamblers have a lot of options in altcoin between bitcoin, then every gambler want to taste a new coin.