Yeah, not really the same. I had a really really complete Vectrex setup, every game (even the stupid ones :-)) AND their overlays, I'm pretty sure every accessory. Which I ended up selling to a guy doing a museum?[1] Anyway it was quite the game for me. I knew eventually it would stop working and then just be a memory but still.

The screen was what really made it, and I get that having a vector scope manufactured would be expensive (it isn't true that nobody makes CRTs any more, but it is true that they don't come cheaply). Its also the reason I never really went all the way and bought one of my all time favorite arcade games which was the cockpit version of 'Star Wars' with its color vector display. (even harder to store!)

In a related effort, I looked at replicating a CRT "look" for some older test equipment that came with CRTs using a high dpi IPS display. I probably could have succeeded if I had an FPGA for doing the phosphor simulation (I developed a lot of respect for Tektronix's DPO technology and their patent portfolio on same :-). Very much a diminishing returns kind of thing.

[1] If you're that guy and reading this say "hi" :-)