I live in the "Gig City" and I've had access to 1Gb for some time. I have not seen my property value move in any direction because of the availability of Fiber. -- I do not, have not, and will not work for AT&T/Comcast/Verizon/Charter or similar sized company.
It's not making a difference one way or another. I think the only thing that may matter is if you can get "high speed" from someone. In most parts of Chattanooga you can choose from at&t, Comcast, and EPB. I would say at least 99% of homes have access to at least Comcast and EPB. at&t has a pretty large DSL foot print though there are parts of town with access to 1.5 - 3Mb. uVerse is available here but I have no idea what the foot print is nor do I know anyone who has uVerse. -- I do not, have not, and will not work for AT&T/Comcast/Verizon/Charter or similar sized company.