The RP9 and RP45 are not exactly brand new. A quick search of youtube and the rest of the Web will turn up numerous range reviews. One issue with the RP9 was the first round being tossed out of the gun if you slapped the mag in with any vigor. I don't know if that's been fixed, but the AR review was damning with faint praise if you ask me.
As for the MSRP, I ignore that on all products these days except maybe Porsches. The RP9 has been fire-saled by at least one wholesaler for $300 or less in the last 12 months.
I NEVER pay MSRP. As a contractor and businessman, I never got to sell for MSRP, and I won't pay it.
Lots of places say the mfgr will not let us sell below that. That is baloney. The mfgr and wholesaler already got their cut. Who are they to dictate retail price, and a margin that the end retailer must work on?