I wouldn't say gambling sites token are not profitable. There are only a couple of gambling sites that have tokens that can be exchanged but in this bear market it is normal that their prices drop (everything is dropping). There is always a risk involved also, but I would invest a small % of my portfolio in gambling tokens.
I would like to say if gambling token is quite profitable but once it comes to the bearish trend and there's no thing that becomes profitable in the crypto except shorting the market. The drop was a common thing during the bearish market but the problem is how difficult to get the volume. Let's say that if the platforms have bunch of users but that's not even affecting the daily volume trade from the token. The tokens hodlers are sometimes feeling so difficult to liquid their assets to the market due to the liquidity problem. Investing small amounts of money is not giving you a huge risk caused by you lose a few percents from your money.
I think userbase matters here more than it matters anywhere else. Because, these are casino tokens and if there are a lot of people that matters. Normally in other tokens if there are 1 million people with 1 dollar investments or 1 people with 1 million dollars, it's basically the same. But here, if you have a lot of people that means great things and that is why it matters, those are potential gamblers as well and the more there are gamblers the more money the investors would make.
I personally love the idea of a casino token with a HUUUUGE base, and there are not that many right now, but there are quite a lot of them with potential, so it will become great eventually.
What I see is that when investments are made in a type of token, what we expect is that if they are at 0.1USD or there, that when bitcoin rises, these tokens reach 1 dollar, and then sell, most of them people are looking for this type of business, and that is not bad, each person is looking for a way to play, trade to earn more and more money, this is something that cannot be denied, also if there are facilities like that it is something worthy and respectable, I know many friends who have invested like this and have gotten off very well, now they have houses and cars due to the good luck they had at that time.