An excellent point - one I quite agree with.
Though maybe (just maybe) we should consider: that therein lies Bitcoin's strength - it's utter inflexibility; that it is what it is... and nothing and no one can change the fact that a bitcoin is worth this much
computing time and it will never change. - A kind of gold standard?
Equally of course, it's real worth lies in the value of what you can trade for it and I fully expect that this does fluctuate with the vagaries of the market...?
Now I am a suspicious sort and I'm wondering - just how un-malleable is the system? Because just like many nations, rulers and criminals through out history have been tempted to - I wonder if the temptation is there for those who run Bitcoin, to shave a little bit off the coins? If you take my meaning; whether for personal gain or as a (mis-guided?) attempt to improve things - sometimes it is in a people's best interest to de-value their currency (haven't China been doing that for a while?).