Umm, yea, huge understatement. Want proof, watch Greg Koch try out some high-end guitars from Wildwood Guitars on youtube. Even over the internet, with little earbuds, I could tell a good guitar, anyone in here could, it's so obvious. He'd be trying a Strat for example, and I'd say "yep, good one" and then look down below the video in the information section and see "the guitar in this video has been sold". Other 4k guitars just didn't have the x-factor. Here's an example of a good one.
When I bought my Ibanez, I tried it against 3 others, they were all different.
I've played 4k PRS's that were awful, others that were magic.
I can't believe people buy guitars without actually trying them.