One problem with being the first on your block with the latest and greatest...evenually, EVERYONE will be hooked up to the same line that feeds your set.
Watch those speeds drop and drop and drop...
And then, when something happens in your neighborhood, or even nationally, watch the bandwidth fade away...
There's only so many "bits" that can fit into/onto a "pipe" and it's just a matter of time before you start to get frustrated with AT&T and their equipment.
BUT, if your neighborhood and local government entities did their homework, you'll have 2 or more "overbuilders" on top of the original company that wired your neighborhood and that alone may keep those bandwidth figures from collapsing under their own weight.
Good luck with your hook-up though.
Keep us posted as to whether it's still a bargain in 4 or 5 months!