I just purchased the humminbird helix 7 si gen 2 from basspro its listed as 699$ at bass pro found that jet.com had them for 590 they price matched it. If you sogn up for bass pro credit card you get 10% off first purchase so with tax it was around 580. Was a steal in my opinion has si di and navigation but have to get map card for lake detail. Just recently bought a new boat getting it ready just my 2 cents