Looking at my submission record today, I realized that out of 82 total submissions this year, I only had 20 post submissions.
I think I know why I seem to prefer e-mail:
#1: It's easier. (no printing and stuffing)
#2: It's cheaper. (no postage)
#3: It's less cluttering. (pop the sent e-mail into a yahoo folder instead of keeping a real folder of papers)
#4: It's immediate. (find a market from Ralan or Duotrope, open a new window, send off an e-mail to the market right then and there)
I wonder if I'm unconsciously limiting myself by heading first for the markets which accept e-mail submissions. Truth is, I save the ones who only deal through the post for last.
Anyone else run into this phenomena?