If I have a $10 membership at one location but want to go to a new one opening in March will it be as easy as cancelling mine and going to the next for the same price or will I have to pay more when I start up at another location?

I however would recommend getting the $20 membership in case you want to go to any Planet Fitness in the United States without having to go through this again

You can switch locations online. You do not have to cancel. I have been enrolled at 3 different Planet Fitnesses. Check out your online info

Yeah, pretty sure you just switch it, no need to cancel.

It's easier. You can just tell the new one you want to switch your location and they can do it for you. You may also be able to do online or on the app but I haven't looked into it. Some locations also have a kiosk that will allow you to do it as well.

Should be the same. Since the $10 membership does not have a cancellation fee.

I'm pretty sure if you tell them you want to transfer membership from one location to the other its no problem.