Thanks for the info. I am planning on averaging in with class B. What would be the best way to buy?

Through a discount broker, or is there a more direct way? 

I'm not aware of any direct-purchase plan. Pick your favorite broker, open an account, and start buying.

Duane

Johnny Go Browns,

It is my understanding that you can do automatic investments in BRK.B at either Sharebuilder.com or Foliofn.com.

With either broker you can invest dollar amounts and buy fractional shares.  You can DCA at about $4.00 per transaction.  I'm not sure what additional fees they may charge.

helmut 

The $4.00 is the cost of the trade, not the amount invested.  An example; if you were to DCA at $400 per trade, the transaction would cost you $4.00 or 1%.

helmut 

theDumberOne:

At $4.00 a transaction it will take around 1040 transactions to buy one BRK.B at today's price.

Only differences are as follows

1) B shares are 1/30th ownership of an A share.  i.e. 30 "B" shares are the equivalent ownership of 1 "A" share 

2) A shares can be converted to B shares at the rate of 1 to 30.  B shares cannot be converted to A shares

3) A B share has 1/200th of an A shares voting rights.

 
4) In the market the two issues are priced independently but if you multiply the B share price by 30 you will equal the approximate trading price of one A share.

buki05:

 
4) In the market the two issues are priced independently but if you multiply the B share price by 30 you will equal the approximate trading price of one A share.

 

And if not, do what Buffett does when he gets bored, arbitrage.