try these places
Marine Electronics & Fishing Equipment, Buy Humminbird, Raymarine & Garmin Fishfinders, Handheld GPS, Chartplotters, Radios, Radars & Autopilots Online
Three Rivers Marine Electronics
Amazon.com: humminbird 998: Electronics

I have done business with both 3 rivers & j&h & very happy with both. Some places on amazon have been advertising 998 for as low as 1699.oo last week-you may have do do a search on amazon-may be more deals out there with xmas close by-Good luck and plse let us know if U find some better deals thanks Jax