I try to switch mine around a fair amount, but there are a few which have gotten little to none wear. For instance, I bought the Grenat medium-size Paddington bag (I was told I was getting the red - when I opened the box, I was a little surprised but since I wasn't as familiar with the Chloe bags I just thought it was their 'red'!).
Anyhow, I used it for about 1 hour (TOO HEAVY) and it's been back in it's dustbag ever since until I sell it. The color is beautiful, the leather is beautiful, but I really don't know why I bought it as I really wanted the Silverado Tote (which I eventually got). I think I got caught up in all the excitement ... I'm not going to do that again because it's such a hassle having to sell it later (on eBay that is!).
The only other ones that don't get as much wear, are the L/V Theda because it's really special and I don't want to muck it up with the crappy weather that we get here in New England (I did take it out a few times in the summer for special events).
I actually used my Birkins a lot more before I got the travel Balenciaga (Voyage/Weekender), because I have the huge 45cm size! The difference is that the Balenciaga is SIGNIFICANTLY lighter!
I'm really trying to temper my handbag impulsiveness so that I don't commit the same mistake as I did with the Paddington! :shame: