Hmmm, landing at a genuine disused/abandoned field is setting yourself up for breaking bits of the aircraft as the runway won't be maintained to any standard!
If you were in a pickle and had no other options, a disused might be a godsend but for normal ops, it'd be a tad irresponsible and have the potential to get very expensive, very quickly!
You might want to have a look-see here:-
http://en.wikipedia.org/wiki/Gimli_Glider
B&S
