Vintage and rare bags. Name is not necessary important as long as there is quality leather.
^^ this. But I have trouble finding high quality vintage bags. Internet's a good source, but you can't search "show me high quality leather" on eBay
Right now, my favorites are
1. Hermes, for leather quality and lovely scarves - but way, way too expensive
2. Dooney and Bourke, for amazing vintage leather and perfect equestrian chic
3. Kate Spade, for trend-setting cuteness and daring, wearable design... if I had a million dollars lying around I'd probably buy 1 Birkin and half the Kate Spade catalog for my "fun" purses... so many goofy clutches...
4. Chanel, for chain bags. I love chains on bags.
A few indie shops in Etsy have caught my eye. It's a risk to spend $500 sight unseen, or I'd have sprung for an oversized calfskin envelope tote several times over.
Honorable mention to
Gucci, specifically for their backpacks with bamboo handle. Very specifically... I hate their prints.