> made the app feel cheap and had less class This is about usability and familiarity, not eye candy. "flat" stuff is way too abstract for many users thus the

> made the app feel cheap and had less class This is about usability and familiarity, not eye candy. "flat" stuff is way too abstract for many users thus the very definition of not inclusive design. When (old and younger) people can't tell what your icon does because you decided to go "flat" at any cost, you failed as a designer. flat is also boring has no personality. It's appropriate in some contexts (a web form), but not necessarily in others. Trend and hype drove the change from skeuo to "everything is flat", this was never about good design.