Personally, I'm not looking for a store of value. I want a low-cost, non-reversible, resilient means of Internet payment. Bitcoin does that better than gold or silver, so that's why I work towards its success.
Indeed. Currencies, in general, make for poor forms of savings. That's not why they exist. Bitcoin exists as an Internet cash equivalent, and if performs that function very well. If you are looking for a store of value, there are much better choices.