I've gotten my spray baste technique down, but I think what I like about it Jshep is that it is much cheaper. Much much much.
I keep saying "next project I'll try glue" and there keeps being a reason why not. Right now my machine is in the shop and I was given a couple of left over bottles of spray to use from another quilter. Then, it is on my to do list!
edit/ps: Also, we have reptiles in the house/rooms where I would use spray baste and I'm concerned about the spray fumes. I have adequate ventilation and all that for humans, but there are no real guidelines for geckos!