Another one of those guys who had a Ti-99/4A in the 80s that felt nostalgic and bought one recently to relive old times.
I probably spent too much, but I got a working system with a 32K expansion and FinalGrom off of Ebay recently. Also found another console at a garage sale that works. So now I have two (both in silver/black).
Last time I had a TI-99/4A was in 1985. Bought it on clearance (Sears I think). Had a lot of fun back in the day with a few cartridges, cassette recorder, and lot of typing in of Basic Programs. The Navy, lots of moving around, and newer computers made me eventually stop using the 99 and it unfortunately vanished in one of my moves.
I probably don't have much to contribute to the community, but I did make a small remix of the JediMatt42 case for the 32k/Tipi sidecar. Only real difference is the Texas Instruments logo in the side. https://www.thingiverse.com/thing:4625910
Now to start reading up on things.