Just yesterday I responded to a recruiter, explained my situation and asked a couple specific questions. The response was a totally generic email that made it clear he didn't bother to read what I wrote, and just was eager to get me on the phone.
One thing I've learned is they want to get you on the phone ASAP so that they can waste your time, because somehow in their minds, the more time they waste on the phone with you, the more likely your'e going to be interested in them sending you jobs. (If I'd ever had a productive, business like conversation with a recruiter that wasn't full of weasely words and them evading questions, I might feel differently.)
I think this must be a Sales 101 tactic.
Well, I'm in a position to be picky. That makes me the kind of person you probably are really desperate to hire.... so why not take the time to read my reply and respond to it?
I mean, I expressed interest. Now I know I'm going to get follow up mails along the lines of "you expressed interest in blah... lets set up a call" for weeks... he'll never go back and actually read my response, I'm almost certain.