In your original post it sounded like you are only planning to plant grasses. But, if there is any chance that you will plant bigger seeds at some point, you may want to ask about how each machine handles bigger seeds. When I was looking at these two machines to plant mixed covercrop including oats, vetch, clover, austrian peas, and fava beans, Woods told me that their machine would crush the larger seeds and Landpride told me their machine could handle them all. $1800 for an extra seed box seems pretty pricey, but I didn't check that out because I buy pre-mixed seed.
Also, while it probably doesn't matter for your application it was important for mine, the actual width (as opposed to the working width) of the Landpride machine is somewhat narrower than the Woods machine.
In January I was quoted $4100 for a Woods STR48S-2 and $4200 for a Landepride APS1548-01.