Here is a 'hockey puck' GPS unit for $35...
Off e-bay, I bought a DVD with all the raster charts pre-loaded plus SeaclearII, plus a pdf instruction manual all for about $10.
Yea, Seaclear is a free download and so are the charts. But I get them all in one handy DVD, AND I get a pdf instruction manual which Seaclear does not have. Go ahead and try doing your own complete download of all the charts. This DVD was cheap & now I have everything on disc.