Oh yeah, it was awful by then. At my store you made essentially minimum wage plus a sort of commission for addons/upsales (as long as they were over a certain percentage of your total sales) and flat bonuses for new cell contracts, phone/accessory sales.
Theoretically it could add up to a passable paycheck for retail, but they had it set up so that only a few senior staff ever got enough hours/good shifts where you could conceivably hit the addon percentages needed to qualify for commissions. So the only way to make any money was to sell cell plans, phones, and accessories. The whole store was totally focused on hawking cell plans.
Then we had to go to monthly meetings an hour out of town on our own dime. That's where they talked at us about the company and how cool and great it was. Such a shitty place to work. IIRC there was a dedicated web forum called "RadioShackSucks" or something like that where staff complained to each other.