Lately i've seen quite a few aircraft for sale on Barnstormers and other sites that started life certified but now carry experimental exhibition (EE) airworthiness certificates due to modifications. This is usually touted as a great benefit in the advertisement and I understand that it probably is from a maintenance or upgrade perspective just like EAB is. I haven't looked up the rules on EE in detail yet but it seems to me like folks are possibly trying to use EE to skirt the STC process.
What would the drawbacks be to purchasing such an aircraft? Anyone here ever owned or operated an EE?
A couple of examples.
https://www.barnstormers.com/classified_1261835_Cessna+185+tail+wheel+conversn.html
http://www.quietaviation.com/

