I certainly didn’t want a full touch screen. The complete panel tear up that comes with the new Garmin units with the associated cost is likely also a deterrent. However there is a slide in replacement from Avidyne. The IFD 440 and 540 are direct slide in replacements for the 430 and 530.
I replaced my circa 2003 430 with an IFD 440 from Avidyne, it is a far superior unit as one would expect from newer tech. The Avidyne has knobs and a touch screen, a remote keyboard, and an app for an IPad. Updates are via a USB stick, and it interfaces with ForeFlight.