It is far too close to the netbook price range.
Tablets need to come down in price to the $100, low $200 range. Going into the $300 range is crazy considering a much more functional netbook or entry level laptop can be had, and in the case of the more expensive tablets, they tend to get into the performance laptop price range.
And giving the size of a tablet, the transport arrangements are similar for a tablet as it is for a netbook or laptop (the footprint is very close and you cant stick the tablet in your pocket)
For the price of a more expensive tablet such as a ipad, I was able to get a acer laptop with a radeon HD 6650 1GB, Phenom II x4 CPU, 4GB memory, 500Gb hard drive, 15.6 inch screen, and a bunch of other useless features
With a tablet you are basically getting slower hardware, you are loosing a physical keyboard for a harder to use onscreen keyboard that takes up most of your screen, and a touch screen which means (try enjoying that movie with smudges and dirt in the way of the picture)
PS even with the dual core android tablets, they still lag with flash while a modern laptop will not have that issue and you will be able to use a wider range of flash content and have a more functional OS that wont randomly quit background apps)