I have a 3g model, and frankly, don't find it's worth the $$. And yes - I travel for work work a lot. It's definitely nice to have, but another $15-$25 a month adds up quickly. I turn my account on/off to reduce costs, and would really think twice when I upgrade to Ipad 2 or 3. Here are a few questions to ask yourself:
- Over the next few days, make a mental note of how often you are someplace with no Wifi. For me home, work, client's, airports, hotels, cafe very often have very good wifi access and I"m in one of those a lot. That basically leaves being in-transit or when the above don't have wifi.
- Do you have a really good smart phone that gives you access to the web when your between wifi hotspots
- Do you drive a lot where you need maps/driving instructions? Ipad is awesome for this, but for me, I rarely need more than my Iphone provides.
All this being said, if the extra $100 isn't an issue, get the 3g, use it for a month, and turn off your account if it's not worth it.