Tattoo kits come in a variety of different types, with features tailored to those who are buying them. But many people who are interesting in becoming a tattoo artist - and by extension, and are interesting in obtaining a tattoo kit - aren't really sure which type is for them. In a nutshell, the question becomes: who should consider buying a tattoo kit?
Like the tools used in any business, from tattoo artisty to fixing computers to a locksmith, there's an industry built around supplying these tools to the businesses themselves. When it comes to tattooing, things are a bit different as this business is often not modeled like others. For the person just starting, this means they may just directly by the supplies they need and attempt to learn how to do tattoos. Whether or not this is frowned upon by professional artists is another matter, and doesn't make a bit of difference to how popular these kits are for someone wanting to become an artist in the tattoo world.
This actually answers the question quite well. Who should be buying these kits? For the most part, it's only beginners and even those just interested in seeing what this craft is all about. The tattoo supply companies know this and they market the kits correctly. A tattoo kit will have anything and everything a beginner needs to do tattoo work or practice doing tattoo work, from fake skin to tattoo guns to instructional DVD's to get them going.
There are even a few different subsets of these kits out there. Most would qualify as a starter kit or basic kit, but others - usually in accordance to price - offer more than just low to medium quality basics. A tattoo gun kit is going to contain multiple guns, and the same for a needle kit with many more needles, and so on. This means it's possible to get a kit that is tailored a bit more towards your interest in specific types of equipment for doing tattoos, but also giving you a little bit of everything else needed to do the work.
In summary, a tattoo kit is something that beginners should consider!