Be grateful that it validates your MBP purchase.
Anyone who can replace their MBP with an iPad made an unwise decision to buy a MBP in the first place. They spent way more money for way more computing power than they needed.
While it certainly can be said so. Many people bought a laptop for its portability, not the speed. I guess buying an MacBookPro over a MacBook and then replacing it with an iPad would seem like the original purchase was overkill.
But for me, the portability was the original factor in getting the laptop. I had a MacBook I sold just before getting the iPad. For me the iPad took care of 95% of my portable needs. With jailbreak and an Camera connector kit using iFile its nearly everything I need. I'd like a better ability to manage and use documents/files and native iPad printing being the missing item I'd like for iPad.
Before there was an iPad, the other options available were netbooks or a MacBook. I was seriously considering a netbook before the iPad was announced, but didn't like the short battery life for something that I would be using as more portable than the MacBook.
Certainly the iPad has limitations easy to accomplish with a laptop, but for battery life, functionality and portability I couldn't be happier with an iPad --aside from the two issues mentioned above.
The apps I regret purchasing are usually the $4.99 or greater prices. For $0.99 I don't mind trying an app, as long as it performs as suggested/advertised.
-Bento (I don't have the desktop app to sync back to a desktop. I don't use it, maybe it just wasn't something I needed but thought would be useful)
-Whistle (didn't like a phone number assigned in a far away area code)
- Real Racing (just didn't think the price justified for the game, although I like it as a fun driving app. Other racing apps just seem to offer a little more entertainment IMO)
-WeRule (free, and just a disappointment after playing it for some time. I ended up playing it as an obligation to my friends rather than for my enjoyment)
-iDisplay (worst performing when first released. Maybe its improved, but AirDisplay worked much better and feel burned for this purchase)
-AirSharing (I purchased the original iPhone app, then the Pro to get the additional features. Once the iPad version came out and I'd have to purchase again I decided a $0.99 GoodReader was a viable alternative and does most AirSharing can do.)
CocotoKart HD (controls seem really unwieldy, I thought it would be a good kid racer as less than the Pangea game with a similar style of play)