I think group scanning is a terrific feature and useful for applications like the one mentioned. Many families designate a channel and use one or two repeaters, a quick-cycling scan through just a few channels ensures reliable coms for a family group. So funny for me to learn just now of the MXT575 in the pipeline as I installed an MXT275 in the bride's suv just yesterday. Really wanted a higher power radio, cost wasn't the issue, dashboard real estate was. Having the display on the mic was the single feature that drove me to that radio. Woulda gone with the Wouxan 1000g otherwise, which I think has a removable head unit, but even then room was scarce and the wiring up makes the install a much bigger challenge. I would absolutely upgrade to the MXT575. I sure hope they'll add an "auto-on" feature to enable the radio when starting up the car and add group scanning as well. However, my guess is that it'll be the exact same radio as the 275 with the only addition being higher wattage. (Note to self: email Midland.)