eBay is current running a "Pre-Daylight Savings" promotion on its website, which ends at 11PM EST tonight. Using the promo code "PSPRING20" (without the quotes), you can get 20 percent off any purchase of at least $25, with a maximum discount of $100.
Seller manhattanproducts on eBay (99.3% feedback rating) is selling the Nintendo Switch with gray Joy-Cons for $279.99, which is already $20 off the MSRP. When you add in the PSPRING20 code at checkout, that brings your total down to $224. We should mention that the price also gets you free shipping, and you can earn $2.80 in eBay Bucks (which you can spend at a later date).
It's not often that eBay posts percentage off coupons that are site-wide with no seller restrictions, so you'll want to jump on this deal as soon as possible (while supplies last). As of this writing, over 700 consoles have been sold during a one-hour period from this seller alone.