What's the scoop on ipads?

There's 2 in my family, but none with cell capability.

After spending the last few weekends with friends watching football games in the boat (cell) and on my patio (wifi), I'm thinking I need this in my life.

I'm open to better suggestions, otherwise can you point me toward the ipad I should choose? Are there multiple ones to choose from?

I'd guess 99% internet surfin and some football viewing.

Plan to tack it onto my business cell account. (The cell part, I don't mind buying the device up front.)

Any tips?