Good fishfinder?

Well my lowrance lms 350 gps just bit the dust so I'm looking for the best fishfinder under $500. I was thinking about not getting the Gps since I'm not smart enough to use one. Seriuosly I haven't used it 10 times in 5 years so whats the point. If anybody has any suggestions of a good plain depthfinder let me know.

I have a Humminbird Matrix 17 which goes for about $250. I really like it, it has good detail, it has plug ins for added options like GPS, barometer, computer, ect