Quote Originally Posted by SuperDave336 View Post
Is paying the $500 difference from 7 to 8 worth the difference in quality?
The 8 G3N SI unit is also a + unit. It has twice the power and will support the Mega 360 if that ever gets on your radar.

It also has 2 card slots. It is very handy to have a map card in one slot and record to the other. The transducer for the 8 is MUCH better than the 7 and also has the low Q 2D tranducer.

If you are going to invest in a unit save a little longer and go with at least the 8.