IMO the Elite 5 DSI is a perfect example. Some of the images Lowrance put out were the same ones for the HDS. I bought one in December when they were introduced and had to wait until late January to get my hands on it, what a disappointment! There is no way that unit can produce those images, in fact some of the "supposed" images were in colors not even available on the Elite 5. After many calls to Lowrance one guy finally admitted that the DSI technology and the gps in the Elite 5 was nowhere near the quality of a HDS. I've said all along we were mislead. Mine was $699, if it had been $299 I would've been more sympathetic to it's quality.