Thousand trails resales vs zone pass?

I think TT is trying to discourage resales as much as possible. We purchased a resale of a Platinum membership via Craig's List. This was originally a lifetime membership. When the paperwork arrived we now have a 10 year membership that can be canceled after 10 years by either myself or TT. Dues went to the prevailing rate $635 and no lock on dues at 65. The 10 year rule works both ways though, we can't cancel for 10 years either even if we wanted too. We paid $2k plus transfer fees for ours and thought we got a good deal. A year later some friends got the same type of membership for $500 plus transfer fees. As you said we do not get the Encore parks which I do believe zone members do get. Overall we are happy with our membership but you need to use it at least 30 days a year or you might as well not purchase one.