[mgkimsal]

While I sympathize with the 'value pricing' sentiment, and do use in in some pricing situations, part of the 'value' measurement comes down to the other party's ability to execute and extract the value from whatever I (or my team) produce. Having a time factor in there (X hours, Y weeks, whatever) and having part of all of the price be affected by the time put in reduces that issue, but also generally will tie you to lower profits of any sort.

I've done 100 hours of work for company X, and they were easily able to recognize > $300k of value from that project. Another 100 hours of work for company Y, and they were struggling and complaining about a $7500 charge for that time, as they "didn't see the point" (the original sponsor did, but the rest of the team wasn't executing on the whole project, and nothing was getting done, hence little value arising from anyone's time).

Finding more projects like company X, and fewer like company Y, becomes it's own fun exercise.