For the first time, we have a street price from Canon USA authorized dealers on the RF 28mm f/2.8 STM, it is now discounted to $249 (a $50 or 16% discount from the regular price of $299). These dealers do not collect sales tax to most states (please inquire for the details). You can optionally add CarePAK PLUS to your purchase.
Note, due to the small order size, shipping is not free on this item, but is very reasonable — $10 to $15 depending on destination.