HDS 10 gen2 vs newest versions?

[BigWorm]

I have been learning how to use the HDS 5 and 7 gen2 non touch units that came with my boat. Really having fun with them and am ready to get a bigger screen. I have the opportunity to get a really good price on brand new HDS 10 gen2 non touch.
Any concerns I should have before I commit to buy?
Should I just suck it up and buy a Gen3?

Thanks for any insight!

[Ain]

I'd like to know the same thing I don't know if I want to buy the gen2 0r gen3 is 3d worth the extra money as well?? How does your gen2 work for you I want something that shows me what's down there an it's easy to use

[Edd]

Gen2 non-touch are discontinued, no support offered.