Well, I saved my Mini Lin Dune for warmer weather and I'm happier! It's warmer now. All my other bags I used right away, except for the White MC Pochette, I saved until I went to see the opera Madame Butterfly (that was like a month), I then realized I LVOE it and should have used it sooner.
The only bag I regret is the one I waited to use for a long time, my Viva Cite MM. I kept it in the box and dustbag because it was my very first LV and I was nervous to make the vachetta dirty. Now, every time I bring that bag out, I feel nervous about getting it dirty. I really should sell it, but I just can't bring myself to. So I bring it out every now and then, feel guilty and worry all day about the vachetta, then put it back in the dust bag. Its about four years old and looks new and STILL has the new LV smell.