I've pretty much decided on getting a 5800, but having a dilemma about where to buy it. I'd like to get it from an authorized dealer so that the warranty will be valid, but the only B&M that I know around here that carries it is Hi-Fi Buys. And the best they can do is $3600+tax. However, I can get it online for $2489+shipping from ecost.com (and maybe less from somewhere else). So the question for you is: is getting this beast from an authorized dealer worth more than $1000 extra? Also, if I do buy from an un-authorized dealer, will I still be able to get the upcoming upgrades installed?