I think that if you use it well and don't abuse it, it will only look better with time and use. You know, like an object that is truly loved and reflects the love put into it. But, being thrown around and trashed out is not good. Things age, that's life. It's how they age which is important. I've had my azur speedy 25 for almost a year, and it's aging beautifully and I adore her, careful with the vachetta, but she looks really really good. And, god forbid, if there is a horrible accident, like a water stain, LV will replace the vachetta. I'm actually going to get a repair on my Biscayne Bay from a pen mark. I wanted to die when that happened, but I quickly forgave myself because I was in the hospital going into surgery and things happen. I was stressed. So, i will take it into LV and get it repaired. No biggie.
Use your bags. Rotating them is an important tool. Happy Speedy 30!