I'd check craigslist/ ebay. I got my 460 Magnum for $350. Have only had one problem ( had to replace spark plug wire, used 4 " piece and crimped it in, being an electrician helps ) Thing is awesome ( 25" Bar on it now, and can go up if I need/ want ). Guy gave me a 60 day warranty too!!
Alsao, I'm with Stihl-O-Matic. If anyone is looking for a saw, and they see one for cheaper in my area, I'll get it and send it to you to save you money. I paid $300 for my 310 a bunch of years back, my dad couldn't get one for less that $400, so we went online found it cheaper, and lucked out to have a friend that lived close enough that he got it, and my dad gave him the money when he came to visit. Nice deal