My LHBS is pretty Ligit, I'm so glad to have it nearby. He has just about everything you would need aside from fittings, not much selection with those other than the basics. But plenty of grain for most anything I brew, wide selection of hops, great selection of both dry yeasts and WL yeasts. His mark up might be on the odds and ends and accessories...cleansers, small parts, keg and draft parts, stuff like that. I haven't ordered online for anything that I could get there, last online order was for some draft parts, fittings and dry yeast he was stocking yet.
Is he cheaper, on some things yes, other things about the same and like mentioned, with some particular items, no, he's more expensive. What little more I may spend per pound of grain, oz of hops or $1 more on yeast, I'm probably still saving with no shipping. It's about an hr round trip to get there, get what I need and BS a few minutes and get back home. You can't beat walking in the day of or day before brew day to get what I need.