I have pretty much everything at this point still except for the 200lb+ clothes (well, still have a handful left but not much because we had an international move after I'd already lost 25lbs).
However, I figure that some of the items are good to have around. A lot of them are maternity clothes and we'd like at least one more kid. Plus, some of the better pieces I've gotten altered recently to get more use out of them (I posted pictures of them
here). Also, as I discovered the first time around, my weight doesn't magically come off immediately even while breastfeeding so it'll be good to have some bigger sizes during that transition period.
ETA: oh, and funny story. My husband is a BIG guy (tall, large frame, muscular, and still just barely in the obese category according to his weight). Anyway, we were organizing our closets a couple of weekends ago and found that a pair of pants that I had (when I was around 215 or so) fits him perfectly! They were men's pants being that the store we had gone to didn't have pants in my size so now he gets a new pair of pants out of the deal (good thing because he's shrunk out of most of his clothes already too!!). It was fun putting them back on and seeing the difference and remember when they were even too small for me to wear!!