What to do, What to do?

I currently have an etsy shop where I sell some of my handmade items, and more recently some vintage items I have picked up here and there while "junking", "thrifting", "garage-saling"...  This portion of my shop has done much better than my handmade creations, and I think I have finally found my niche. 

I have recently been thinking about opening a physical resale shop.  However, that takes more time and money then I have to invest right now.  So I am not thinking about renting some booth space at an antique mall to sell some of my treasures. 

I would love input anyone has done this - pros, cons, costs, what would you do differently, what worked, etc...

Thank you for sharing your secrets with me!