I think that this will happen soon, because taking bitcoins by sellers will lead to higher prices for goods because of high fees. For small purchases, this decision will be very unprofitable.
Yes this condition is not very profitable, so try to buy maximum amount of bitcoin or if you want to sell then try to sell maximum amount of bitcoin, because in this way you fees will no effect you profit and you will get what pretty much secure future for you bitcoin, and I hope sooner when retailers accept bitcoin then this profit margin will increase further more.
yes the price of the bitcoin is increasing very fast and we can make good income through it. Selling your bitcoin can make you earn money but for it you need to keep an eye on the price of eh bitcoin sell it only when you see the price of the bitcoin is very high than the price you bought your bitcoin so it is a good source of income for the investors and the traders. Bitcoin is now accepted by a lot of countries and they are trying to make it legalized currency so bitcoin is very important for everyone equally.