Too true!
Major db vendor (hint: "O", CEO is "LE") sent a team of 6 to the presentation. Are we a peachy account, or what?"
Us: How do we know it will perform?
O: We said so.
Us: Uh, we're not getting warm fuzzies here.
O: Why not?
Us: We said so.
So we gave them a list of technical issues to address, as opposed to that canned-but-customized pp slideshow (insert victim-name here), and sent them off to try again.
NINE WEEKS later, a remixed team showed up (only the sales folks got stuck facing us again), with a different custom-canned presentation.
NOT ONE of our specific issues was addressed, and anything we asked got a reply of "that's proprietary."
C ya!
