At the lower prices I would say they are worth it. Joker's biggest issue is the knees. I, however, haven't felt the need (yet) to swap out the knees or the body. Harley and Catwoman are excellent figures with the exception of the base bodies. Harley was falling apart upon opening her up. Catwoman hasn't fallen apart yet. Replacing the body for Catwoman isn't an issue. Her outfit zips open. Harley is another story. Once that body deteriorates you're going to have open her up because that plastic will stain the outfit. I ripped the seam and did a blind stitch (first time). It came out okay, but could have been better. Some of that can be hidden by the corset.
That's was another thing I was going to ask. Since you need to remove the clothing in order to swap out the body, how many people actually put the corset back on her?
Jack, since you put the corset back on, does that need to be sewed as well? Or does it lace back up? Also is there a recommended replacement body for the Joker figure?