On 1 August, the (open source) software which makes the work behind the bitcoins (blockchain) is reworked. This will certainly lead to short-term conversion problems.
Until then there is a little uncertainty, which is accompanied by "profit-taking" and "price declines".
In the long term, it will not change in the rise of Bitcons and the increasing acceptance outside the "nerd niche".
The bitcoin will be a serious alternative and official payment option and will thus be gaining in value, only by the fact that the demand increases and the offer is limited by the system.
Falling courses with generally good prospects are always a signal to enter. Find out more about Bitcoins, if you do not already know about it and do better by August 1, 2008, a few days before the end of July.