I am struggling to understand why anyone would want to shell out their hard earned cash to de-activate a feature whilst not a safety issue, is designed to prevent accidental damage to an item that would cost quite a few quid to replace.
Personally, I manually fold in the mirrors virtually every day, purely because some of the lanes around here are that narrow and my O/S wing mirror has been hit twice, so it easily becomes a habit on some narrow lanes but not on normal roads. Also for me, when parked, just a glance walking away and seeing the mirrors folded, confirms that I have locked it and not forgot to.