That's what I've been doing, too. I started in 2010 and buy a little whenever I have some extra cash. My last purchase was on Monday; my next will probably be on the 23rd when I get my penny-per-share from GORO.
At this point, I think my investment (and I think of it that way) is relatively safe. Proven value, perhaps not to SEC standards, but sufficient for my mind and management with both reasonable goals and the experience and demonstrated talent to reach them.
Dino