I do not feel sentimental at all about my first wedding to my first husband that ended poorly. My mom feels sentimental about it because she bought me the dress, then had it put in a huge archival box. It's been ...um.. 30 years now and I've been remarried for 15 and she STILL has that giant archival box because "maybe it'll mean something to your kids."
Maybe it will, my first got engaged tonight. But I don't think she will fit in it, neither will my second, they are both 4 inches taller than me. Am I glad my mom had the space to store my dress until now? Yes! I didn't.
I do not have the dress I got married in the second time. I decluttered it awhile ago. I guess I am not sentimental. I still have the second husband, and that's all that matters to me!