I guess I am in the minority here.
I would never install a drywall ceiling in a basement.
I totally agree that the drywall ceiling looks better; no disagreement there from me.
However, in our home we have had a major, major leak in our en suite shower on the main floor. Not only would it have required more effort to find the leak, caused us to break the drywall ceiling to locate the leak but also much more effort to repair the damage to the drywall ceiling than it took in time and money to simply replace 6 or so new ceiling tiles.
Then we had a toilet leak which caused more water damage to another area of the basement ceiling.
Lastly, in early November we installed on the outside wall of our walkout basement a solar air heater for which we used insullated flexible duct to take the heated air 25 feet into the basement. Again, with the drop ceiling it was very, very easy. If we had a drywall ceiling .... ?
I've just seen too many things in life that are unexpected when it comes to houses to ever recommend a drywall ceiling, even though they do look fabulous.
If you think I'm just making the above situations up, here are links to our stories in our home blog:
Solar Air Collector
(this is a work in progress)
En Suite Shower Leak