As the title says. It's starting to really bug me now.

In the last couple of months or so I had to read through lengthy "lessons" (in forums/PMs/emails) from sellers as to why EMD is very valuable (even with half a dozen hyphens), why their new SEO contract is going to get their sites back to the "normal" level of traffic within a few months, why their own time running the business shouldn't be accounted for, why SE traffic is not risky, why Paypal is safe for the transaction etc etc.

I'm finding it increasingly difficult to sit through these lessons. I sometimes point out that I've written the book on valuations or that I've already been in millions of dollars worth of transactions already so save me the sermon. I don't like to pull that line, but even that fails to work and I still have to sit through the arguments some of them pretty pathetic and ignorant. I'd like to just tell these sellers to shove it but there aren't that many opportunities around in the market and it's hasty to dump those you've already spent time identifying and researching.

How do you guys cope with it?