then click on the tab for "compare prices"
you can select by category (so if you're looking for a laptop, or an mp3 player, or digital camera, whatever, you can get independent reviews, ranknigs by editor reviews and user input, whatever), or if you know the item specifically, enter it in the search box
pop in Garmin 2730, hit enter
then when the table pops up, click over on the right hand side under TOTAL COST and it will sort by the lowest TOTAL price, including available rebates, shipping, and applicable tax...notice the column to the left that indicates if it's in stock.
If you are happy, click the price and it takes you right to that vendor's website where you need to be to purchase the item.
Depending on the item, that 90-second process can allow you to "comparison shop" between 15 and as many as 150 stores with five or six clicks of the mouse. Most of the time I end up with prices cheaper than I'd find on EBay for things with the bonus of real warranty and return service. It's how I got my 2730 last month.
(remember, the new Zumo and the 2720 and the 28xx series does NOT include the separate xm antenna that lists at $249, which is pre-packaged with the 2730...)
---for grins, I just did this for the 2730, took 60 seconds and you can get one at three places for under $710 now (bastards, I paid $730!!!)