Vic ... sorry to read you learned the hard way. Of course, I respect your opinion. I sure wish more dealers would arrange for home auditions. It's really the best way to make informed decisions. OTOH, let's face it, most gear needs a forklift to move around. So even if dealers were more inclined to arrange for home auditions, you may wind up with a hernia.
Let me throw a few comments out there. The version numbers of the Paradigm speakers that you had in your home look like early models. You didn't specify a version number for the S8. It might have been the first version.
The current model, version 3, has come a long way since version 1. For example, version 3, my model, uses a beryllium tweeter, a cobalt/aluminum alloy midrange, and a re-designed high efficiency woofer.
By contrast, the version 1 used the G-Pal tweeter (aluminum/gold anodized), which was known for being "hot." The version 1 also used a mica loaded polymer mid. The woofers were a scaled down version of the current version.
The S8 v3 has garnered top reviews from Marc Mickelson, Steven Stone, Jerry Del Colliano, and many others. If it matters, last summer, I was checking out other speakers because .... I was bored???
Well, a buddy of mine who is a Paradigm dealer had taken in trade an ARC VS-115 tube amp, which was my former amp. We hooked up other speaker models to the VS-115 and A/B'ed them against the Paradigm 30th anniversary tower -- call it the S5. (The S5 uses the beryllium tweeter. The other drivers are a cross between the Signature and Reference lines.)
I won't mentioned an A'gon favorite darling speaker that was in the shootout. But call it speaker X. If speaker X was born with a tail and legs, let's just say it crawled out of the showroom with its tail between its legs.
My point is that Paradigm's Signature line has come a long way since the S8 v1 was first introduced. I'm not saying you wouldn't come away with the same conclusions if you road tested it again. Just that it's worth a listen.
Right now, I'm driving my S8 v3s with an ARC Ref 150 amp, and am listening to a Mozart medley a musician neighbor ripped for me. The CD is surprisingly well recorded. Mozart is not what I would call "single voice or single instruments" -- we're talking about a full symphony orchestra here. The separation of instruments, lack of compression, faithful sound, imaging, ... and so forth and so on, .... just great.
Cheers.