Yes there are - in two categories...
1) Bags that I have yet to use: white and brown Watercolour Speedy 30's, Delightful GM, Roxbury in Amarante - all were bought new but have sat in their dustbags since
2) Bags that I haven't used in a while: Trevi PM, Tivoli GM
I just took my Roses Neverful out to use as I didn't use her at all for two years. I used my Neo Cabby GM quite a bit this winter, and used my Azur Totally GM while in Hawaii in February / March. I've been using my Beaubourg and my Mon Monogram Neverful GM a lot, as well as my Evas. I also use my Sunset Blvd fairly often.
Every time I look at my bags that have never seen the light of day I feel badly, but I do enjoy taking them out to look at from time to time!