It requires researchers to amass evidence for this? They must be getting government grants.
There are places I won't go to eat because just reading the menu takes more time than I have for lunch -- I wouldn't think it would take vast amounts of research to figure this sorta thing out ...
Even the fast food joints are starting to join the too many choices trend: Do you want the grilled chicken or the fried chicken? Do you want the Honey-Mustard-Tofu-Wheatgerm sauce or the Banana-Nut-Bat-Guano sauce?
I wish they'd all change their scripts and have the first question always be: Do you want that with or without choices? :-).