I would agree with you if network fees didn't ever spike and you didn't have to wait minutes to hours for a confirmation.  Those are the major disadvantages of bitcoin in my opinion, and there are a lot of altcoins which don't have them. 

There really doesn't need to be an internet currency.  There just doesn't.  And I say that while being an ardent bitcoin supporter.  Nobody is clamoring for an alternative to fiat except those who are so blinded by bitcoin propaganda that they can't see that people *don't* have issues with buying stuff online with fiat.  That's the truth.