The images in your pictures do look like delamination however, sometimes there are support pieces under that can also look that way. So, not every "bubble" is delamination, look for supports when you see that first before you run. Mine had a water leak so when they took it apart to fix, this caused some delamination. It is fine and doesn't leak, but it has that look in a place or two. The problem with the materials that are used to build these things, this happens. It would be great if we all had an open check to buy a rig, but some of us are on a budget and have to look beyond the fist sign of trouble. Delamination on my trailer has not caused any other issues, we fixed the source of the problem and it hasn't come back. This was about 5 years ago, so it is fixed and there have been no other issues. Trailers are built really poorly so often they have to be fixed. A sale price should reflect these issues, then you have to decide what it is worth to you and if the problem is truly fixed.
