The question that I'm posing is......What is your cutoff point? What I mean by that, is which system is your cutoff system, in terms of not playing anything earlier than that system?
For example, I've pretty much determined that the TG-16 is my cutoff point. I don't really play much of anything pre TG-16. I'll play TG-16 and Genesis, etc, on up.
For a little while I was collecting and playing NES, but I just can't get into NES that much. I also had a Atar 2600, even got a super expensive S-Video mod for it, but it turned out to be a brief phase for me. There is only so much time left in my life that I need to focus on systems and games that I really, really want to play.
I've decided that the Turbo is about as retro as I want to get.
For me, the Turbo is a perfect cutoff point, because it's really a 8 bit system in a 16 bit disguise, so it gives you that flavor of the 8 bit era, but it has some very nice 16 bit trappings to it. 512 simultaneous colors is a very nice 16 bit trapping if you ask me. But at the real core of the TG-16 it is basically a 8 bit system, and that is as far back as I want to go with my graphics.
It's the graphics whore in me. I will totally admit that I'm a big time graphics whore. So that is definitely a factor. Also, I will occasionally play a game of Contra or Metal Storm on my XBOX NES emulator or on Pocket NES on the GBA, but I've just decided for the most part to roll with TG-16 on up.
I got a Sega Master System awhile ago, primarily because it's the oldest standard console system to offer RGB output. But I quickly learned that RGB really doesn't do much for it, it just has too few colors to play with. (This makes me also think that the holy grail of somehow playing NES in RGB is probably way overrated). The Master System unfortunately has to deal with a very small amount of colors on screen, and I never had a master system originally, and all of it's best games appear to be downscaled Genesis ports.
I know that it's more me, than the Master System. I never had a Master System originally, and I've never played a single Master System game till just recently. But it didn't take me long to determine that the Master System is just a little too underpowered for me to really get into it. I know that's pretty shallow on my part, but hey, I might as well realize it now, before I start buying tons of stuff and not using any of it.
Ok, getting back to the original topic, my cutoff point is the TG-16, what's yours?
Also, I'm sure that some people don't even have a cutoff point. They play everything all the way back to pre Atari 2600. And that's perfectly fine and acceptable.
I'm guessing that alot of people have a cutoff point at the NES and Sega Master System. That those are the two oldest systems that they will play on a consistent basis.