bro, i trust his judgement too, but when buffett dies, BRK is gonna tank hard, and he's gonna die soon. his name is the only thing that keeps that stock afloat at its present value.
not to say the 75+ underlying companies don't have value, they do. i'm a finance guy, i've worked on wall street, i'm the biggest disciple there is in the value of what he's amassed, but the difference between market value and actual value is going to get nuts when he passes. i don't know your kids ages, but you're gonna need some significant time for a rebound and i'm not sure the market will ever fully recognize the value of berkshire without his name attached.
i'm a flat buffett groupie and i wouldn't put a dollar in BRK. ymmv. good luck bro.