When I was out of the vendor side of the business doing consulting for a number of years, I always had to shake my head a bit when clients wouldn't use paid-for time with us or would apparently never make use of some materials like a whitepaper we did at their request.

But it's exactly like you say. People wouldn't get their act together sufficiently to have a team meet with us on some topic for a day or some marketing campaign would be canceled or changed so they no longer specifically needed what we had created for them. Easier to just forget about the whole thing and move on.