What am I going to do if it costs too much? Get a cow?

Uhh...wait, wait, I know that one. I could've sworn you would too. It goes something like:

Why, of course, you'll shop around to find the seller of milk offering the lowest price, and give him your business. The lowest-cost seller will be rewarded by an increase of business, while the sellers of higher-priced milk will be punished by the marketplace. The latter will, of course, immediately reduce their prices to the lowest level, and harmony will once more be restored to the economic universe and the free market will have once again acted to increase the buyer's profits and reduce those of all sellers. Forever and ever, amen.

Of course, buying a cow might be an option. Have you done a spreadsheet on the proposition? No? But as a rational player in the free market, how can you say it wouldn't be cost-effective if you don't cost it out? It might not be cost-effective on an individual basis, but what if you enlisted your neighbors in a joint venture?

Have you considered offshoring the milk-production function? I understand that there are a lot of under-utilized cows in India, and certainly a compelling case could be made for economic utility trumping mere human sentimentality.

Tom, you've gotta take the bull by the horns! Stop waiting around for the government to tell you where to buy milk. Take the initiative, man, you're a Libertarian, you can do it!