Bitcoin is a perfect "store of value"! Why? Because...
If you send 2 BTC to a bitcoin public address, this 2 "value" will be permanently "stored" in that address & no one can do anything about it...unless the owner of its private key wants to changed the value!
You also have to keep in mind that the current market value will effect that 2 BTC`s price :)
It's just the 2 BTC no valuation in USD...if you have 1 ounce of gold, regardless of whatever valuation it is still 1 ounce of gold.