People from the US and Europe seem to do a lot of gluing. It is only just catching on in Australia, from my observation, and I think it has its uses.This is especially so on curved piecing as it keeps everything anchored before sewing and saves a lot of unpicking. I have glued a lot of wall hangings together before sewing and it saved a lot on time and thread.
I have both re-positional glue and one semi permanent one. The re-positional on is good for landscape quilt wall hangings.I also don't worry about getting the expensive stuff the quilt shops sell. I just use ordinary washable glue as long as it is acid free and it all washes out.