Just one opinion, but to me the higher the condition the less it affects the value. During the time the Lend-Lease 1911A1 pistols were being sold through ads in the gun magazines some were still as new in the original shipping boxes. These would command a high price, but a well worn L-L used as Bubba's truck gun would have virtually no collector value.
For many years no one wanted the M1 Rifles that were Lend-Leased to England and brought back for commercial sale. Finally collectors began to realize that these were some of the few original M1 Rifles from the early days of WWII, and the price increased dramatically.
Condition for condition they won't bring what a non L-L 1911A1 will.