Well it is also cost effective. A lot less expensive to purchase a download and then print it yourself on your home printer, at your local printshop, or online through a website. I don't know if it's more of an impulse purchase. I think it is attractive to people that like DIY projects. By using a downloadable file you have a lot of options for printing as opposed to only have it printed in one way.
Artist Notes: Send funny Happy 32nd Birthday greetings with this design that features an overall wood effect with a humorous sentiment based on trees and wood. Front sentiment is "You look so awesome! No one "Wood" believe you're 32" Inside sentiment is "Just don't let them count your rings. Have a tree-mendous birthday!" All wood effects are digitally created.