That's the exact same problem i had to encounter when i saw the matte grey. I got the DS first and figured that i wont bother getting another bag that's similar to that. But as soon as i saw the matte grey, i started getting really tempted, i like the matte grey more. That's because its more of an everyday bag, easy to maintain, dont need to worry too much about peeling, hardware is easier to take care, dont need to worry too much about scratching your closure.
Having said that i love my DS too, carried it out last week, lovely bag, shiny but i tend to go back to the matte grey after. Dont know why, maybe because i dont need to baby sit the bag too much. If you like something shiny, DS is the way to go. If everyday low maintainence bag, matte grey
Good luck!