Maybe that's just your opinion about exchanges or retailers that they won't buy your BTC. I think as long as the exchanges are profiting with fees in different trading pairs/markets that they have, there would be no problem with that. As for retailers, if the owner is a believer in BTC, I think they would be happy to accept it and price it according to BTC price, with that, I think it would be no problem.
That's just the problem with some of the people here, and they do not believe completely with BTC. For some, it's only a possibility to profit, not completely adapting to what it could be in the future, where it would be the medium of exchange towards different people and maybe governments. We will see.