Shake Shack vs Carvel - Shakes

One night wondering around Time Square we ran into Shake Shack for one of thier Shakes. To our suprise we get this tiny little cup shake that cost us 5.25. I can get an exta large HUMONGOUS Thick Shake Float at Carvel for less than that and in my opinion much better. I do have to admit I have never been to Carvel in NYC, only Long Island. So maybe my price comparision is not fair. Either way I will drink my shakes, which does not happen much, but when it does at Carvel on Long Island!