UAL wants FLYI

[Andy]

Why would they sell only the gates and not the rest? The gates are worth something and could be a good bargining chip.

I heard the leases on the Airbuses are the lowest in the industry. Why wouldn't those be wanted?

They wouldn't only sell the gates; everything would be on the block if/when FLYI liquidates.
United's primary interest would be the A gates, and perhaps some ground equipment.
I don't know where you heard that the Airbus leases are the lowest in the industry; I'd question your source on that since FLYI did not take delivery of very many (12). United, Northwest, USAirways, JetBlue, etc, with their purchasing power would almost certainly have better leases than FLYI.