Andy Collins:
"Ultimately, we realized that the greatest factor influencing the likelihood of a particular magic item being used by a character came down to its cost."
Naw, this just shows how much they have the wrong end of the stick. The big problem is not pricing, but fungibility. If you can reliably sell the rarely-useful exotic item, and buy the routinely useful-at-staying alive item, that's what you'll do, because D&D players fear PC death. Most would sell a Helm of Underwater Action for a +1 sword, if they didn't already have such a sword. The only solution is not to have items regularly available to buy at all.
"Ultimately, we realized that the greatest factor influencing the likelihood of a particular magic item being used by a character came down to its cost."
Naw, this just shows how much they have the wrong end of the stick. The big problem is not pricing, but fungibility. If you can reliably sell the rarely-useful exotic item, and buy the routinely useful-at-staying alive item, that's what you'll do, because D&D players fear PC death. Most would sell a Helm of Underwater Action for a +1 sword, if they didn't already have such a sword. The only solution is not to have items regularly available to buy at all.