So, would we really ant to go down that lane at the moment?
Am not so sure I would but, when it comes to petty transactions, its a lot easier not to think the profit that would have come with it.
I think this has been the problem for greater adoption of Bitcoin for transactions. While you are always thinking that the amount spent today will be worth more or less tomorrow, you never come out at the same level.
You have to start not thinking about it all the time. We don't know the future, the purchase is today and that's what we have to think about.