You can find the poll in the Great Demo! LinkedIn Group (and happy to have you join if you are not already a member). Here’s the poll (done in two parts, due to LinkedIn limitations):
What has been your involvement in a buying process for enterprise B-to-B software:
I was on the buying committee
I was the sole decision-maker
I was a key influencer
I was part of the evaluation
I was asked my opinion
I was an end-user
I was not directly involved
Other (please comment!)