@wavetrex
You regret buying yours because you failed to understand what tablets are for.
Not a single company, but maybe Apple, ever stated that a tablet is a good product for anything productive. It is not a gaming platform either. Yes mobile games are popular, but they don't make tablets for that purpose in mind.
Tablets are one of the best way to consume media of all type. Ebooks, newspapers, emails, movies, videos. It's nothing vital, but it's a great buy when you want to bring everything you normal do at the same place. For someone like me that read books and newspapers every mornings and afternoons in the metro or train while going to work, this is a blessing.
If 10 inche is too small for you, while this is totaly subjective and I respect that you might not like it, it's more than enough for most of people, I personally have a Nexus7, and it's just the perfect size for me. I suspect you are the type of guy to have a 60'' TV in his 6 feet long living room 😉.
For gaming, I hardly see how the Occulus Rift would ever replace the tablet?! Most people play mobile games when they aren't home. Do you plan on bringing a VR headset in the bus? In a waiting room? Must be very conveniant to put the set on and lose contact with the whole world when you are in a public place. Google Glass is good, but hardly fills anything from the tablet. You can't consume media on glasses, at least, not as efficiently.