I think a better question is how much riding experience are you working with? Are you moving up from anything or just wanting to jump in head first at 13 on a banshee?
I was in the same boat as you when I was 12 and looking for my first larger wheeler. Wanted a banshee or 250R with a passion but couldn't swing it so I settled for a blaster. Ended up being an awesome quad with a lot of potential, even though I did everything possible to it before I let it go and stepped up it was the lack of power in the beginning, having to ride it on the ragged edge and be a better rider to keep up with the bigger quads, it was the experience I got from it that was worth more than anything.
The blasters are easier and cheaper to work on and learn the mechanics for a youngster such as yourself, they're cheaper used, not over powered but still enough pep to keep you up with just about any other larger quad in the woods, very light weight so it responds better to body language of a lighter rider which is extremely important in handling more power down the line.
I don't want you to feel like I'm talking down to you saying you can handle a banshee because you are young, that's not what I mean. Just trying to stress how important it is to work your way up and grow as a rider. I am so glad now that I started with the blaster, like they say, it's more fun to ride a slow bike fast than a fast bike slow.