Well, why buy an induction cooktop in the first place? A fair question, but let us assure you that induction cooktops are the perfect modern day replacements for hobs, and the portable variants are even better for people who do not stick to one place for too long.
As the name suggests, the best part about portable induction cooktops is that you can carry and use them anywhere. Just find a power source and you are done. You can buy either a single burner or a double burner variant, it is your choice. But there is no denying that these cooktops are perfect if you want to have a garden party or if you like to ride your RV.
There are of course other benefits like energy efficiency, ease of use, safety from accidental burns, easy to clean etc. But one salient point with induction cooktops is that you get a large range of power and temperature control. Meaning you can cook every dish perfectly and prevent unnecessary energy wastage.
This is all explained in great detail at Induction Select, so if you are surprised that a small portable thing can pack this much punch, welcome to the 21st century. Looking at the rising natural gas costs and the efficiency issues with hobs, induction cooktops are the way to go.