I had been working on a project to automate my QSL'ing practices. The QRZ CD-ROM, which had been available twice a year for about $10-14 depending on the source, stored the basic data in an unencrypted, easy to read (CSV if I recall correctly) format.
Frankly (hi Frank!), I'd have preferred to simply buy the CD's as needed. However, they're discontinued.
So for $19, if I can download the QRZ database (in CSV format), and then massage it into the right format for my purposes... it's worth it.
I would PREFER to deal with another source. Only the Radio Amateur's Callbook has as extensive a DX address dataset as what the Zed now has; Buckmaster isn't quite as good, but it's close. Problem is, both RAC & BM encrypt their data, and have very limited export capabilities. Simply not worth the time, trouble, and aggravation to work around the encryption.
Or to put it another way...You would prefer another target, a military target? Then name the system!
I grow tired of asking this so it will be the last time: *Where* is the rebel base?