Don't think like this, paying with Bitcoin for anything that you need is worth it. What makes you stop is the value of it might increase paying but please do remember that if something has been able to get filled because you've paid using Bitcoin, don't feel regret on it.
That's actually the purpose of Bitcoin why satoshi made it and that's for peer to peer transactions with merchants like this. Both of you get to enjoy the monetary value of Bitcoin and its features too.