Kosmost, when you get a chance, here's something for you to look over as a possible feature integration into the Goodomy app.
Have a look at the "save search" and notification system that is available on
www.reverb.com - It basically gives you the ability to save searches and have notifications sent to you when a vendor adds a product you are interested in.
This is a fantastic feature and I have scored some rare gear directly as a result of this feature. For example, I was looking for a certain piece of gear for about 10 years with no luck, but within about 3 months obtained it from a store on reverb thanks to one of my saved searches with notifications turned on. I was notified instantly when it was available.
This would be a powerful feature in the app if it allowed notifications when a certain item has been made available through a Goodomy retailer/seller. I'm not talking about email notifications, I'm talking about the app push notifications feature.
On reverb, create an account, confirm it and perform a search for something like Marshall Amp, add it to your watch list and save the search. You'll see a pop window offering to add it to your "daily" feed.