I second all said about the Helix Gen 2. Down and side are far superior to 1100's. Just got a new boat and difference is HUGE

I upgraded to the 1st generation just before the Megas came out. I don't regret it. Mega was out of my price range. The 1st generation also has brighter screens so easier to see detail in sunlight which was a primary cause for my upgrade and the 12 has CHIRP which I like. For what your old unit is bringing used and the price of the gen 1 Helix, it is worth the upgrade. If you are looking at the Megas then definitely worth it. I'll wait until the Megas start showing up used to try one.

I had the opportunity to acquire the Helix 9 mega and I can tell you there is nothing that has that kind of picture for the price, the Solix is much nicer but the price is a lot higher. I am so impressed with the details it makes it hard to fish from watching the screen displays. good luck. I may be able to get Brad to post a few of my pics on here they are awesome.

Excellent compairison Wayne. Thanks

Sorry to hijack but Im considering the solix as well, and it would be the 15...

The solix 15 is insane, sucks when your fishing partner is half retired and makes upgrades as they come out... The other side of the negative is great though, its an awesome boat to fish on!!

I figured Id ask the HB guys I see here, Whats the going rate for a like new Helix 10 si gps(no mega)?? Still has the plastic on the screen. Id need to sell mine to get the solix..

I just paid $650 for a 10 di with 75 hrs and plastic still on screen and a transducer saver if that gives you something to go by. The prices have dropped quite a bit on new gen 1 units so that'll hurt you a bit

With the MEGA DI units just coming out, the value is even less for the gen 1 DI models.
Now there are three versions:
Helix DI
Helix DI CHIRP G2N
Helix DI CHIRP MEGA G2N