I recently auditioned the RP-280F with my cousin. We also heard the $3,000 Paradigm Prestige 75's and the PSB Imagine T. Of those, the Klipsch RP280F is definitely the cheapest at $1200 a pair.
He went home with the PSB. The Paradigm would be the choice if they were under $2K, but they weren't. The PSB's list for $2,200 these days, but he got the floor demo models for a LOT cheaper than that, approaching the cost of the Klipsch.
The biggest differences were in bass and soundstage. The RP-280F presented good bass and a room filling soundstage. The PSB was much more defined, while at the same time it seemed to project the soundstage out into the middle of the room and forward of the speakers. With the Klipsch. the music was clearly emanating from the speakers and was a touch on the bright side. Perhaps that horn tweeter is what prevents the sound from "separating" itself from the speakers in the way that the PSB does.
Oddly enough, because my cousin is upgrading from Klipsch R-24F that are rather stark, he was hoping the PSB tweeters would sound a little brighter in his home. They sounded quite a bit so when hooked up with the Nordost Puple Flair speaker cables the shop gave him to also test. When we switched back to his Monster Cable speaker wire, that was the first time I've ever heard speaker wire make a difference. Wow. He's now got a set of speaker cables I made him, I'm waiting to hear what he thinks. Yes, he needs some room treatment because the PSB's sound quite a bit different in his rrom than they did at the dealer. That was to be expected. What he is getting is that great soundstage, and incredible midrange with details he's never heard in his music before. And he is playing louder than ever before because there's no breakup distortion that his previous speakers gave if pushed.
Enjoy your RP-280F. they're good. I do hope they're as good in your room as you expected.
KEF R500, R200C, R100, R50, SVS SB2000 sub, NAD T758v3 AVR, LG UP875 4K BlueRay, Samsung UN55JU6500F 4K LED TV, KEF M500 headphones, Sony CDP-CE500 CD changer. Office: NAD M10, KEF LS50, KEF Kube 10b, E.A.T. C-Major TT w/Ortofon Quintet Blue cart.