In summation, if you are tattoo starters, do not have enough capital in hand, could resort to buying hybrid machines that will be able to do all tasks, but only could do on practice skins.
After apprenticeship, we suggest you update your tools, to reach the perfect level.
I can only say that since a tattoo artist works with human skin, he/she simply cannot afford to take chances. Even slight negligence on your part could cost the customer his health. Always remember to sterilize every equipment that is going to be re-used. Although this point does not pertain to the topic of discussion, it is very essential.