I should note that currently BTCDeals does not automatically account for the price fluctuations in the market - so when the price goes back up to approx $30<->1BTC it's not as reasonable as a price as when the conversion used was $22<->1BTC. Obviously it works in my favor when the value goes up in the 24 hour period - but it also works against me if the market were to crash. I do obviously add on a slight percentage for overhead, conversion and risk of not breaking even - not ashamed to say that - I am trying to run a business after all
Basically I do try to make the price as fair as possible, and will be implementing something to handle the market fluctuations during a day this week. Hopefully you will check out BTCDeals.com in the future to see if there are items more suited to a current fair price range.