There are a few issues - there are no "chargebacks" with Bitcoin. You get a lot less protections in your capability to return things - its all up to the merchan

There are a few issues - there are no "chargebacks" with Bitcoin. You get a lot less protections in your capability to return things - its all up to the merchant. Also, the transaction times are too slow right now, esp for small purchases. Finally, there is so much volatility with the value of cryptos - would a merchant want to see the amount you paid him lose 20% value the next day just due to the market?