Hey Matt, if you're still lurking around on this old thread... my girlfriend and I are wondering how much those Spinach and Lettuce starts cost versus the cost of purchasing Spinach and Lettuce in the store.
Starts usually come in a 6 pack with ~4 plants bunched together per 1/6 container. These packs usually cost ~$1.50 so that comes out to roughly $.06 per plant. Assuming you only get half to live that is still really cheap.