Not really. I had this iMac before I got an iPad. I have gone from an iPad 2 to iPad 3 to iPad Air but I'm still on the same iMac, albeit with a 2 TB hybrid drive and 12GB of RAM instead of the stock 500GB drive and 4GB of RAM.
I run this as a media server for my two Apple TVs in the house, so I need a desktop in the house. It's also where I store my photos, which I think take up 150 or 200GB. Now that I'm back in school, I also need a desktop to do certain things because they sure aren't up with the latest tech on everything. We're just now getting a student records system that isn't Telnet in a JavaScript window.
I have actually been shocked at being about the only person with an iPad. Those kids have notebooks galore and everybody has an iPhone, but I can't recall seeing someone else with an iPad. It was a back-saver because I was able to get two textbooks via the Kindle app, which also meant they were on me all the time since I carry my iPad almost everywhere.
I would really like to get a MacBook Air, but it's hard to justify right now. I need a portable at times, which is why I use my Gateway notebook. It's just darn heavy.