If you're wanting to start screen printing, I'd say yes.
You can probably get your hands on a small hobby screen printing press that's a 1 station/1 color.
With a little ingenuity in the art department, you can print some really interesting tees that are only 1 color, even without half tones.
Also, a book that's a must-have for any screen printer: Scott Fresner's "How to Print T-Shirts for Fun and Profit." It's virtually the screen printer's Bible.