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2″ Cast Iron Olympic Weight Plate Set (300lb set) on sale for $399 plus shipping and handling
They also have other online tiered discount promo codes (YORK50, YORK75, and YORK100). $50 off $500-749, $75 off $750-$999, and $100 of $1000 or more, not applicable to some sale items including the 300lb weight plate set. Their bumper plates (sold in pairs) are reasonably priced and fall under the tiered discount if you purchase enough of them. I priced a 330lb set of black bumpers for $520 after tax for local pick up, $679 with shipping.
Only thing I can't speak to is the quality of the equipment. It's hard to find reviews, but google has generally positive reviews on the outlet store. York Barbell has a supposedly long history of making quality equipment in the past, but I've heard it is not made in the US anymore. If anyone else has experience with their equipment, feel free to chime in. I'm giving the 300lb set a shot as a starter set for my home gym.
Link below to their black friday sale flyer, which says in store only but all of these prices appear to be online now as well:
First deal post, hope its helpful