You are likely to lose a lot before you reach level 40
Any idea how much bitcoin I need to play in total to reach level 40?
Ask on the primedice thread. Probably at least hundreds of bitcoins
If you have few hundreds of BTC - is better to check price of BTC before you start gamble with that
I didn't advice to gamble a few hundred btc but i think you need to gamble at least a few hundreds btc to achieve level 40 on primedice, you probably even need to gamble 1000btc which you can achieve with a lot less than 100btc if you are a bit lucky