Players might consider bitcoin as a digital currency, this is not about value although back then bitcoin had zero value rather the main purpose was bitcoin is a currency. The fact bitcoin was used in exchange for goods and products most especially gambling as stated shows they care a lot about bitcoin, just few bitcoin holders had the faith concerning bitcoin value not everyone had the trust viewing the low value.
At that point where a gambler used whole bitcoin to gamble I guess they had positive intention not towards the market or the value instead generally bitcoin was just bitcoin nothing serious attached, for those who held their bitcoin definitely people never doubted bitcoin capacity till date they’re on the better side now.