Is there any reason to keep the "Amazon App Store?"

Not unless you use it,I personally deleted it on my G2.

 

I uninstalled their app store several years ago, for the same reason you stated.

 

Free apps a day. I got over 200USD worth of apps from them free during promos. On Google Play, Oxford Advanced Learner's Dictionary costs 30USD, and got it off them free. QuickOffice is 15USD, got it on free promo a couple of weeks ago, etc. Basically that's what I use Amazon for: Kindle books and the occasional paid app legally distributed for free.

 

yes free app of the day was the reason i installed it. a while ago amazon gave apps for free for 100dollars..

 

Keep it if you use the free app of the day - or get free coins to use in the store (ie credit). You'll also need to keep it if you have any apps that you use since some (if not most authenticate) of apps authenticate through the app store that they are valid installs.

Otherwise if your spending cash (or even getting a free app) - I'd just do it through the Google Play store.

 

I personally have it and I have to say it around a 8/10.They have great deals like the free app of the day except they don't have close to the amount of apps like Google play.The only issue I have with it is that if you have a certain app that you purchased on one account you cannot use the app with a different account you originally bought it from...