What could really be causing this? It's not the stated reasons because if it was the problem would have been solved.
I suspect that like with divorce attorneys, it has to be because lawyers are winding up their clients to create contention and increase their own profits.
Personally, I just recently went through this process after 10 years of helping to build a company. A decent portion of my payout was held for over a year in escrow, while I had to pay income taxes on it, as of the deal closing date, as earned income. I would hardly characterize my decade of work as an attempt to "flip a quick buck".
In fact, we are in a period in business history where companies that have achieved cash-flow positive with good growth and a sizable revenue stream are at a loss as to how to free up cash for continued growth (and to reward early investors and employees). IPO'ing brings huge overhead with Sarbox, not to mention the requirement to manage the business to quarterly goals. Continued venture funding is usually quite a bad deal, loans are still really hard to get, and more creative options (like FB's private placement) are under lots of scrutiny from the SEC.
That leaves a buyout or private sale as the two best options, neither of which is an efficient transaction (ie unlikely to bring the highest value), and both of which are likely to come with some unattractive terms.
As an entrepreneur, don't underestimate the importance of this question: once you create a valuable business, how will you transform the equity that you've created for yourself, your employees and your backers into cash?
I have made an exceptional number of bad gambles in my life, butg I have never felt the ned to either justify or disclaim responsibility for the choices I made on a public forum.
If this sounds dickish, I apologize, sincerely. I have made the best decsions of which I was capable at any moment in time... my failings do not tepresent a failure on the part of those who depend on me.
I'm saying that maybe people should think outside the acquisition box. I hear that some businesses actually make money by making something people will buy.