Slabbacks, I am sold on getting an SI capable sonar unit. If you had it to do over again, would you still buy the same model or would you have purchased a different one? I have been looking over the various options and for me it seems like screen size would be the only advantage to getting one of the pricier models. I use an ipad instead of a computer so a lot of the computer functions of the expensive models would be useless to me. I'm also not really concerned with the gps abilities. Since I fish the same bodies of water all the time, remembering locations where I marked beds or productive points/ledges would not be a problem. I want to get what would work best for me but I hate to pay extra for a lot of features I wouldn't be using.