I understand the argument that sales after MIR should be considered, I don't think they're actually useful for saying something is on "sale"
It's also on sale
You still have to buy the product at full price and you usually don't get the rebate for several weeks.
It's a $20 MIR... if that's a large sum of money you can't live without for a couple months, you shouldn't be buying a $250 monitor
There's a time limit in which you can apply for it
Yeah, 30 days after purchase in this case. Don't procrastinate?
You have to mail something, and while I would like to believe USPS is fairly reliable, you never know.
On USPS reliability....that's a pretty broad generalization. Seems to be grasping at straws.
Rebates now typically are preloaded debit cards, rather than crediting your payment method
Yes. It's not an instant rebate/refund. That would be a sale discount or coupon code, not a "rebate"
On this one, payment via Zelle, direct deposit, or physical check.
You have to cut off the UPC code, which means you no longer can return the product.
The obvious reason here would be to make sure people aren't buying products, getting the MIR and returning for full refund. Netting $20 in the process. If you want to preserve the ability to return it after the 30 day MIR mailing period (newegg's return policy is also 30 days), don't do the $20 MIR. Even without, $250 is a good price for this IMO. Also, the warranty still applies if the UPC is cut off the box.
There's still a chance the manufacturer won't honor it
I've only had one MIR denied and it was because I exceeded the mailing deadline. I called and they STILL honored the MIR.
The steps/instructions for a MIR aren't rocket science.