its only a matter of time before coins will have to be sold in fractions as well because buying
a whole coin when the price reaches $10,000 will be too expenisve for the average user
Why would you HAVE to buy a whole BTC? That isn't a limit or restriction.
You can always buy a $1 worth of bitcoin for a $1, even when BTC reaches $100,000,000.00 per BTC, that would be 0.00000001 BTC. (I believe I did that math right... $1.00/USD * 0.00000001BTC/USD = $100,000,000.00/BTC)
By that time, a dollar will only be worth a penny, and the "Dollar Menu" at McDonalds will be the "Hundred-Dollar Menu". That, or the "0.00000100BTC Menu"...
If you want to feel more rich, you buy LTC or one of the hundred other alt-coins instead. That, or keep using FIAT. But 1 BTC will fit in your pocket easier.