Yes, I've heard this a zillion times. It's hard though. People all around are publishing, in the good journals, chapbooks, even books. I am wishy-washy on the submissions game. I have times when I send out a lot of work (oh, say last fall when I spent hours creating a submissions system and sent out quite a few packets) and then other times when I have just 3 or 4 packets out.
I noticed Steve Mueske mentioned his "lotto tickets still out" and that's just it. Sending out a manuscript really does feel like playing the lotto. I played this fall for the first time and I still have a few "still out" but I haven't put as many submissions packets in the mail. I think I would feel better about it if I had sent out more submissions to quality journals & skipped the manuscript. But it seemed like a good idea at the time. I hope the small presses do appreciate the donations.
Does it matter? Should I be more motivated to submit? When I'm in the mood where I hear time's winged chariot, I get annoyed because I haven't been submitting. But for the last few months I haven't felt motivated to get the work out. Writing alone is enough. There will be time, later.