For me, it all depends on the church congregation i guess.
For eg, everyone (almost everyone) in my mom's church is rather well-off, it is a middle to upper income level church so there are a number of branded bags esp with people in my mom's age group and I believe my mom carries LV to church (maybe not all the time, she rotates), so that wld be fine.
However, if I attend my grandma's church which is where I was baptised, I wld not. This is bec the church is made up of middle to lower income people, and I think I want to be a little more sensitive to those who might not be able (or find it difficult to) to afford such luxuries in life.
To me, this is the way I show Christian love to my fellow brothers and sisters; but this is my style, I am not saying it is the best or that any other style is incorrect.