I haven't driven an RX but a friend has 300k on theirs and has loved it. Just sitting in the showroom the RX felt much bigger and I really wanted a smaller vehicle this time around so I didn't test drive it. We drove the NX 200t though and really liked it.
Dealer had exactly 2 NXs on the lot, one base 200t and one F Sport 200t. After we drove the base it was taken to be prepped for delivery to someone that had put a deposit down. Price for the NX was straight MSRP...no deals.
The RX in contrast...the dealer said he had about a 100 new and used in two dealership locations! He indicated there were deals to be had on those.