The following is totally useless information but as I'm a list-happy wolf I thought I would post it here anyway!
Here are the package file counts for each SP/EP available if anyone other than me cares. (It's a nice way to make sure you got 'em all converted to Read Only!)
Base + Happy Holiday = 786
University = 542
Nightlife = 255
Open For Business = 241
Family Fun (SP) = 104
Glamour Life (SP) = 103
Pets = 396
Seasons = 327
Celebrations (SP) = 103
H&M Fashions (SP) = 101
Bon Voyage = 288
Teen Style (SP) = 101
Free Time = 390
Kitchen & Bath (SP) = 104
Ikea (SP) = 91
Apartment Life = 515
Mansion & Garden (SP) = 110
I didn't include Double Deluxe or any of the *new* packs (which are just bundles of earlier packs) because I don't have them!