Jim H, it's a good point worth thinking about, and a lot of it comes down to just how tight you think the profit margins for major league clubs are. As others have pointed out, the fact that minor leaguer salaries could be doubled for less than 20% what the Twins paid Nick Blackburn last year suggests clubs (at least the Twins) aren't operating at extremely tight margins and probably have room to simply eat the cost. If MLB profits are virtually nonexistent, or teams are unwilling to reduce their current profit margins, you might see minor league jobs reduced--but I don't see indications that that's where the first of the fat is to cut. The reason MiLB salaries are so low is not because MLB teams believe their money is worth little when invested there; it's because minor leaguers have been represented by a bargaining unit that doesn't care to protect their interests, and so has traded away their compensation in exchange for benefits for major leaguers. My guess, if teams were unwilling or unable to lower their profit margins? They'd guard their Free Agency dollars more tightly, eliminate that new MLB coach position they just added last year, or look for areas around the clubhouse management where they can save money--because my hunch is there's even less surplus value to be found there than in marginal minor leaguers, even if their salaries doubled. Also, regarding the shrinking farm systems of the 50's and 60's, my understanding is teams disappeared not because minor league expenses went up but because minor league revenues went down--TV outcompeted minor league teams so their major league owners had to start thinking of them more as investments and less as additional profit-generators.