The internet is awesome for us lookers. We can imagine the joy of buying a fine gun, look at the pics and try to rationalize the expense (as if the money was there to rationalize spending). As far as calling to see if it's available? No clue. If it's listed and you want it and have the means-then buy it. If it's gone you'll get a call letting you know.

As for the dealer? I really don't want to waste his/her time if I'm not actually ready to buy. I'm forever buying a box of ammo, a holster/sling/case just to help encourage the business. I want them there when I do have the money and that awesome gun shows up.