Sonar for ice fishing is very different than open water units. Flashers work better than screens because they don't freeze up nor do their screens crack, burst or ruin the LEDs. Side scan, 3d et al are great on a boat, pretty much useless shooting down a 10" hole. I have the most up to date electronics on the boat but you still can't beat a good old flasher for marking fish and your bait when ice fishing, particularly when it gets real cold out.
Gearing up for ice fishing is fairly new to me. I have been mostly a minimalist since 2003 and have gone with friends already set-up. But because of school, I can no longer afford to depend on others' gears and schedule because my available time is incompatible with theirs. In the last two months I have invested in sled, Eskimo 2 tent, Eskimo 8" pistol drill auger, Milwaukee cordless drill (1250 FT-LB torque), and other miscellaneous stuff totaling over $800+. The fish finder will complete what I think I need. As previously noted, I am undecided at this time and keeping my options open for any upcoming end of season/clearance or preseason sale. All I know is that I have a blast out there regardless. Thanks again for your input.
Ed