Can't color up to $100's, WTF?

[MarkGritter]

I'd been having a good night at the $4/$8 Stud Hi/Lo game at the Garden City in San Jose. I filled two racks of blues and asked the chip runner to color me up. He came back with 10 blacks ($20) instead of the expected 2 whites ($100). When I asked about this the chip runner and dealer explained that they couldn't give the $100 chips to players at a "small" game any more.

(Never mind that when I bought in originally the floor gave me a $100 chip and a rack of blues for my rack of $2's.)

I really don't understand what could have motivated this change--- the $20's still aren't particularly usable in a $4/$8 game. Did somebody in management decide that players were wasting too much time converting racks to $100's and back, or what? I'd prefer not to juggle a stack of blacks.

Can anybody offer some insight as to why this policy was put in place?