Molly - I have moved from a wired to a wireless on a new bike and I do not find the wireless to be any more fussy than the wired. As noted above, I like it because there are fewer wires that can catch and break - and it is less cluttered. That being said, the only problem I had with the wired was the same that can happen with the wireless, the magnet on the wheel spoke getting moved and having to be readjusted.

Wireless is dropping in price, and I didn't have to purchase anything extra and no additional purchases. I am confused what your salesman might mean about this.

Either option will work for you, the important thing is what you want. You are also not limited to Bontrager, you might want to research some of the other wired computers online. I don't know how Bontrager is in the computer department and didn't know they even made them. Which doesn't mean anything at all