Cytocycle,
I tend to think it is all in the ear of the beholder, meaning absolutely relative anyway, but I'll make a brief response to your query. Indeed I have had considerably more expensive cartridges on my Galibier (in the $1-2K range), mated to several different phono stages/preamps, but I will be honest in saying I've yet to flirt with the likes of a Dynavector XV-1S, a ZYX Universe, a Lyra Titan or a top Allerts in my system. Since we are dealing with something that is going to wear out, I've always balked somewhat at the pricepoints of the top contenders. That said, I have indeed heard the Dyna, for example, on a similarly equipped Galibier and delighted in its holistic magic - all the fabulous stuff you want, but none of the hi-fi artifice so common in so much of today's gear (at any point in the reproduction chain, from source to speaker).
Salectric is absolutely correct in his statements about the Denon DL103R - having heard this cartridge numerous times over the years, I could never understand what all the fuss was about. While I always thought it was an adequate performer, it was only when mated to Galibier/Triplanar that I finally(!) understood what the big deal was. You know what, my Lyra which I was so happy about using on my fully loaded Linn LP12 now sits in its box, and the Denon does the work. While the Lyra gives me oodles of detail, soundstage extending to infinity in all three dimensions and great frequency extension - it fails to make sense musically - it is, as I said, artifice, without very much meaningful content. While the Denon doesn't do a couple of those wonderful hi-fi things as well as the Lyra, ultimately it makes me smile, cry, laugh and tap my foot like there's no tomorrow - it communicates the emotional intent of the artist and the gestalt of the performance brilliantly.
Alas, there is no easy way to verbaly describe the communicative nature of the Denon (or the Dyna XV-1S, or the ZYX Uni., et al). You know it when you hear it - you become immersed in the performance, and forget all about the the hi-fi stuff we all hold so near and dear. You don't think about the gear, only the music.
If I look back at the trends in hi fidelity equipment since the dawn of the digital age, I think that while digital has made great strides to sound more analog in nature - analog has tended to go in the opposite direction - to become more digital sounding; to allow for a convergence of sonic types. Unfortunately, I tend to think cartridge designs are the biggest culprits here. This in my opinion is wrong-headed, but it reflects an overall trend I'm having difficulty ignoring. Some folks want big, slamming bass notes; they want every last iota of detail; they want a sound that more closely approximates the sounds they are continually bombarded with every day (whether on TV, in line at the airport, or on the radio) -- the modern ear has effectively been "detuned" away from natural musical reproduction, toward a homogenous, compressed, sterile approximation of the actual event. I'm sorry, but if one doesn't regularly attend acoustical music concerts, or has never heard a correctly transcribed LP untouched by ANY digital artifact, then all hope is lost IMHO. You've essentially never heard what real music sounds like, only a mere approximation. This analysis also begs to answer the question of why so many folks are into vintage gear, from amplification to transducers - perhaps there is some intrinsic value in a small degree of euphony; perhaps everything shouldn't be so so clean; maybe a little distortion is OK; maybe some designs from 60 years ago, now long forgotten - had it absolutely correct.
Sorry for the rant and the length, and of course, take this all with a grain of salt - we all value different aspects of musical reproduction, and ultimately we all find our own path toward nirvana. Happy listening,
-Richard