There is a counter argument to that view Alister. If a pilot gets used to something like:
Brakes - off, pressure good
Undercarriage - Down and welded Ha Ha
Mixture - Rich
The day he starts flying an aircraft with retractable gear he may well follow the format "Gear "down and welded Ha Ha" without ever checking that is the case.
Personally, I see a significant number of student pilots following a memory checklist without actually doing the checks.