Hey! Hello and welcome! It's nice to have a new friend around here -- especially one who understands the value of Get Backers!
I love being able to read GB in book form, but as you say, it's hard to lug them around. I only own 8 volumes, and they take up some room as it is.
What's nice about the scans here is that they are continuing where my volumes left off, so now I can keep reading and enjoying Ginji and Ban.
Make yourself at home and post often so we can get to know you better. Once you have 15 posts, you'll be able to access the current releases -- in the meantime there are other things to see and do around the place.