You should look at current bitcoin prices to get a sense of how much you should ask. (finder.com)
However, it seems that current bitcoin price spike came unexpected for most observers, if not all of them. (coinfox.info)
Staff opinion: We believe the markets will sustain current bitcoin prices in the $ 610 - $ 620 range for the time being, possibly sparking a rally in the next days or weeks that will push the price to a level near current technical indicators. (bitcoinist.com)