Title says all. Personally I vote bubble. Anything that increases 1000x is too good to be true IMO.
in my openion this is just like the investment assets then is a way to make money in legit ways .
Here it is truth that daily new new altcoins are coming in the online market and also few of them are going also but in actual these the main source of income , so instead of saying it as bubble we should consider them a legit way to make money and nothing .