Thanks. I don't know if I will start buying from here, or not. I already have accounts elsewhere. Shopping online is like automatically saying "yes, I'd like to sign up for a shoppers reward card."
And the price seems to be 5-10% more expensive, here; at least, on the items I have bought. Resellers are apparently allowed to and are given enough margin to undercut by a bit. In OP's case, something like 20% cheaper, even with eBay's cut.
OP, I was wrong:
According to Hakko's USA store, you can set the station higher than 840F
"Adjustable temperature control, range: 120° - 899°F (50° - 480°C)"
I would have just tested it myself, but you know what the UI is like. I'd a had to look that up, how to switch from C to F. FWIW, the "super hot" preset on mine is 350C, and that is only for temporary use. If I was in a pinch, I might try to adjust up to maybe 400C/750F, tops, before breaking out hot air for preheating. That's kinda what I have learned, but I typically use tips with large mass, which has an affect on the temps I use. At 400C, the chrome plating turns dark if you forget and leave the station there, IME... say unattended for a spell. I mean, if you were still using it you'd notice because the flux would be instantly vaporizing in a cloud of smoke.