It could also be a way that Kyrgyzstan is asking/blackmailing US for more
money. Because US only had plan to spend up to 100 million dollars to
enlarge loading area of the air base for more Afghanistan operations.
From washingtonpost:
Kyrgyzstan officials have said they want the base closed, but lawmakers
there said Monday that the parliament will delay voting on it until Russia
provides $450 million in loans and aid it promised when Kyrgyz President
Kurmanbek Bakiyev made the base announcement