if you use bitcoins just as it is then you can go and gamble without even trying to see what the current price of bitcoins are. But the problem is we are not all early adopters that have thousands of bitcoins in their possession. Most of us are just playing with a few dollars and if that is the case then we would really need to consider how much are bitcoins at the time we are playing.
No, I do not think both of the scenarios are same. Bitcoin price volatility has serious impact on the gambling habits indeed but there are some exceptions too such as the addict people who never care about the level of losses and all they want is to gamble no matter the price is $250 or has increased up to a present value of $7,000.
As for me I have stopped taking risk at all and never use Bitcoins for the sake of gambling in present because taking such a huge risk is not a phenomenon thing at all.