L-Leucine vs. BCAA's

If low on funds, would one be better off buying a given amount of BCAAs, or would they get more bang for their buck by purchasing the same amount of L-Leucine by itself? Thanks.

GO BCAA’s. When taking straight leucine isoleucine and valine (the other 2 bcaas) levels lower.

[quote]LankyMofo wrote:
GO BCAA’s. When taking straight leucine isoleucine and valine (the other 2 bcaas) levels lower. [/quote]

Can you explain this?