Reubent,
Yes replacing the Thiels with a bookshelf is not possible in my budget. But I'm 15 years older than when I bought them, and my listening style has changed dramatically as I've reached 60. I think I can be satisfied with a $3,000ish pair of bookshelfs, and a REL T/5X or T/7X.....especially if I pair them with great electronics. Right now purchased a Denafrips Pontus II D, AC and am strongly considering a Nuprime Audio AMG STA amp.....if I can figure out the volume control issue.
Thought of some more great live recordings in my collection, even if the recording quality is less than perfect the performances make up for it: Talking Heads Stop Making Sense, Eagles Hell Freezes Over, Allman Brothers Live at Filmore East, Cheap Trick Live at Budokan, Lynyrd Skynyrd One More For/From The Road, Bob Seger Live Bullet, Aretha Live at Filmore West, Rush Exit Stage Left, and of course the previously mentioned Little Feat Waiting for Columbus which is prior to Lowell George's deat.