[Travis C.]

First question you really need to ask instead of are they worth it is:

Where will I use it?

The cards are broken down in regions. If you can get by with one card then by all means go to Bass Pro or somewhere you can physically look at them to compare. Bass Pro will have display chips of the different ones and you can see which you like.

The Insight was an adaptation from the LEI Hot Spots fishing chip and can be bought already on the HDS units. So if you don't have Insight but get the Hot Spots Chip they will have not every but many similiar features. Insight on the other hand is a better of the two and has a channel darkening feature which aids in navigation but a draw back for both is the contour lines are further apart.

Navionics is pretty much a topo map for underwater. The lines are closer together which really aids in marking offshore ledges or contour changes.

When I sold them, we described the two as: Hot Spots or Insight was a more a "fishing map" with fising info on it and spots premarked on the map and Navionics was more of a "topographic" map for the lake bottom.

If you fish on more than one chip then a national chip would be worth the $$ over having to keep up with 2 different chips. You shouldn't be losing much in the difference plus there it is if you go somewhere new already in the boat.

If you haven't bought a unit yet and this is part of your decision look into the Insight addition for the HDS units. It won't be much more than buying a national chip and it already covers nationwide plus on the 7,8,10 I believe coastal too.

Hope this helps some but the main thing is to check it out before you buy. Any contoured lake map software over preloaded base maps is worth whatever $$ they cost.