Well, do be aware... I don't think that Best Buy _technically_ pays commissions based on sales, but they do often have reps from brands around who will try to sell you heavily on their product (e.g. Samsung reps.)
I've also heard stories that while you won't get a commission, you may get more perks at work for higher sales numbers.
In any case, your experience at Apple sounds insane.
Best Buy isn't perfect, but in general they're much lighter on the 'advice' they try to give you. Their commission is in selling useless warranties, if a clerk does a good job I'll buy one as a tip.
There's no commission at Best Buy. IIRC, Circuit City was the last major US-based electronics retailer to end commission-based sales, and that happened in... 2004, maybe? Something like that.
Employees are judged on warranty sales, and when I worked at Circuit City back in the days when they, uh, existed, we were also judged based on profitability of sales.
I've also heard stories that while you won't get a commission, you may get more perks at work for higher sales numbers.
In any case, your experience at Apple sounds insane.