So, for the first time in my life, I think I will deviate from my discipline and diworsify away from my position in BRK...

Interesting thread, as you say.

FWIW
Though I have certainly expressed opinions about valuation levels being high higher than usual, I haven't actually SOLD any shares or deep the money calls lately, except for the one "bonus" trade I entered at the end of October last year.

I have written some calls (turning part of a long position into a covered call position), but historically I have had a position called away only once...I expect them more than likely to expire worthless, or close them early. So it's really just a minor pass-time quite aside from my long term position.

For those who are selling out, it's a pretty big move. I admire the conviction. I presume it's a thing one wouldn't do merely because valuations are a little higher then average, but rather because of either a perception of a true material hit to intrinsic value, or an expectation of a material deterioration in the future prospects.

For myself, I really hope to be back on a big dip, and with a bigger position than ever. One can but hope.

All that being said, if you're thinking of deworsifying, drop me a line. Like my late mom, I am never at a loss for an opinion : )

Jim