See my post #12 in this thread.
There are some products with strict price controls (Bose quickly comes to mind). where MSRP is the actual cost.
However, other products have a street price that is well below MSRP.
In the case of this unit, street price was $430. Not sure it will stay in that area as Covid 19 is disrupting pricing on many products.
I would say for those products that have street prices, it makes more sense to use that price than MSRP because that is the actual price you would pay were you to buy one!
So comparing MSRPs with this at $850 vs Nad c268 at $900, I would say the NAD is probably worth the extra $50.
However, when you are actually buying them, this is under $500 vs the NAD at $900 which is a no-brainer! From my perspective, this is the realistic comparison, not MSRP!
(Crutchfield and most other suppliers are out of stock (It seems Covid 19 is impacting the industry, I've also noticed many Yamaha units are also OOS), but you can currently buy at New Age Electronics for $470):
https://www.new-age-electronics-corp.net/niles-si-2150.html
Just FYI, this Niles amp is also capable of being bridged (rated at 550 watts into 8 ohms).