Not counting the R40 2-Car Add-on, I have three full R21 4-car subway sets, 2 in HO, and now a Redbird in O that I just purchased yesterday at Ready to Roll Trains here in Miami.
It's positioned right next to me at my desk at home along with my other interests where I've working remotely for the past year plus.
I had one of these in the past and sold it - big mistake. I jumped at the opportunity when I saw one come up.
P.S. - Yes #Strap Hanger and #bluelinec4, whom I've been conversing with offline on another topic, with this purchase of the Redbird it looks like I've changed my mind in a big way