Disclaimer, I do not own an Android device--yet. But I have ordered Amazon's Kindle HD 32gig, 4G-LTE tablet. I've researched as much as I can about this device and found that for the most part, there is a comparable app available on the Kindle as on the iPad. So I would answer, you can build a decent library of Android tablet apps with an Android tablet.
The follow on comment is, I am not going to get any additional Android app than what comes with the device out of the box. Ninety percent of the time, I am going to use this new tablet to consume media from Amazon and Netflix. I might set it up for personal email, bill pay, stock portfolio monitoring, breaking news, and weather. I will keep my iPads to do specific charitable, business, and work related functions.