Startup Idea : Handmade Product Picker

I love shopping on Etsy, but my favorite shops on there are all relatively small and independent. This means they often will run out of products for sale altogether and will just show up blank in my favorite shops list...which is lame. It would be really cool if there was an app that was smart enough to only display shops that actually had products currently for sale and which could comb the millions of other shops on Etsy and suggest items based on my past purchases and the products I have added to my favorites. It would be extra cool if you could setup profiles for family and friends which you buy gifts for on Etsy. That way it would keep you updated on new items similar to the ones you've purchased for birthdays.