Publisher contacts

This summer I've averaged  1.5 telephone calls per week from self-publishing houses wanting to know what I'm working on, what's my estimated date of completion, and if I haven't selected a publisher would I entertain the idea of letting them publish and circulate my next novel. This doesn't include the volume of e-mail adverts. (Many, many more, every day.)

Does this experience resonate with you? How do you decide which house you'll use? Our readers would enjoy hearing from you in "Comments."