Plus ask yourself, what is your plan?
Is your goal to learn to 3d print end use items? Are you going to use it as a prototyping tool for you as a designer or artist?
For personal use, hobbies, do you want to use it for a community?
For introductory courses and hands-on experience check out local fablabs and universities. Even some libraries have 3D printers nowadays. And there are 3D printer rental services.