I'll be attending 45th Aerospace Mechanism Symposium in Houston in May 2020. There are two tours offered: - Two tours are offered, one of NASA JSC on a private tram tour that is limited to first 261 persons to sign up and pay registration. The other is admission to Space Center Houston. I'd like to solicit opinions, especially from those who have been on one or both tours, to help me decide which to sign up for. I don't know how fast the JSC tour will fill up so need to make a decision quickly. If you're reading this in June (or possibly March), please don't bother replying. Thanks to all who are helpful.