It was impossible to have ten to twenty new copies of a certain title just sitting with nobody interested in it because distributors didn't supply mom&pop video game stores with that much and customers were interested in just about anything.
BB
It does seem excessive. You might expect them to have maybe one carton or perhaps a shipper of something they knew was going to be really popular.
It's interesting that stack of Saturn games at the start of the video... the Saturn didn't launch in the US until mid-1995 and Virtua Cop wasn't a launch title, that came out in '96.
What would they be doing with multiple copies of Sports Talk Football '93 in stock? That came out in '92... Surely you'd have put that in the bargain bin a long time before '94 rolled around. One of the crates has Fifa '95 in it... that didn't come out until November '94, so store must have shut pretty late in the year...
Probably all came from David Garretts stortage unit. Why didn't they bring out a crate of sealed Aero Fighters 3 carts? Would have made this video seem a lot more legit.