Boy, you're right on point when you talk about getting 'fresh' cabbage. This is the right time of year to accomplish that. The flavor is so much better, although in the winter, when other fresh vegetables aren't always available, even 'old' cabbage can be tasty.
A friend of mine swears her 'cabbage roll casserole', the one where you layer chopped cabbage and the meat/rice mixture, is just as good as 'real' cabbage rolls. It just doesn't have the same flavor although all the ingredients are the same. There's something about rolling those leaves around the meat mixture that makes it taste just right. I know it's more work, but it's well worth it. And, actually, when you get going and make up your mind, it's just a bit of extra work that's well worth the reward (especially when you make extras to freeze).