LBS stands for Local Bike Shop. Find one. Patronize them.

Look, not too many bike weenies ride as much as me or have been doing this for as long as I have. I know what I'm doing. I buy bikes over the web and mail order. But mostly I buy from my local bike shop, value my relationship with them, and enjoy their support and guidance. I don't need the guidance so much now, but I've been at this daily cycling thing for 20+ years now.

At any rate, you're FAR better off paying $2500 at the local bike shop and getting the right bike that fits than paying $1500 at a discounter and not having a clue.