Interesting subject. We have been moving more towards the matt finish ourselves for outdoor use, but of course always matt for indoor.
Astro, I really dont agree that matt finished graphics for outdoor applications look cheap, far from it, it gives a nice finish in our opinion. When just cutting plain vinyl logo/text then that tends to be gloss all the way but matt finish digi prints look nice, gloss laminate is far too shiny I think, our customers are happy with what we produce for them.
No one has mentioned lustre finish where we could all meet in the middle.
Steve