This seems very nanny state. If I make a product and sell it on my website for 20% of MSRP, where's the gov't to tell me that I can or can't do that. The MSRP is just a number I've made up. Maybe it gets weird when selling things made by other people that have a published MSRP. If I'm willing to take less profit by selling at a discount from the MSRP, then that's literally my business. If I make an agreement with a vendor to not undervalue the items by selling less than the vendor's MSRP, then that's a different topic. However, none of that is any business of the gov't.