I understand what you're saying, Sampanviking. Even India is being offered US military hardware. These sales have something to do with the USA's economic woes.
Although this is a "selling spree" to help with it's financial issues, this isn't just any old soviet-era hardware. This is state-of-the art equipment.
And if you look at SA's purchases, they're not just from USA. Typhoons, which are more advanced than anything Israel currently has, have been purchased from UK. The Leopard 2Es are right up there with M1A2/Challenger 2/Merkava MkIV, as the top-of-the range tanks, more than a match for Iran's Zulfiqar tanks.