Tablets are really cool, I like the Ipad, but compared to an equally priced laptop, the laptop wins big.
The laptop has 10x the storage, & a much more powerful processor. There are far more ports, & can play DVDs, too. The screen is much bigger.
The Ipad is much lighter, & I like the security of Apple screened software. Ipad software pricing is cheap compared to a PC, but can be cheap & cartoon-ish, especially the games. Touch screen is easier on the carpal tunnel than a mouse.
What to do, what to do?
You need both. Computer for prolific data entry, large scale flexible storage, serious computing power. Tablet for convenience, which is hard to overrate.