I bought mine with hopes of running my games in HDMI format. My large 2600/7800 collection is like 90% boxed (many titles stilled shrink-wrapped) and it is somewhat overwhelming to be honest. So I am hoping that someday I can play using something like my Cuttle Cart/Harmony cart off a menu like I do now. I'm an exception, I'm sure, as my boxed collection of carts will stay boxed. The only exception is many of the newer home-brews stay next to my system.. but that's getting to be annoying as well. However, most of those won't run on the emulated 2600+ software/hardware. For now my 2600+ stays boxed next to my other units with high hopes. I'll continue to use my A/V modded 7800 for all things from that era. I do want the system not to have any paddle lag. I am a big fan of the paddle games on the 2600 (Still play Kaboom and Super Breakout on a regular basis). Being 60 years of age, I just can't train my brain-to-hand reflexes to match the lag I experience.
Personally, what I'd really like to see... an FPGA based Atari 2600/5200/7800 unit along the lines of what Analogue does. A unit that plays original carts and is 100% compatible with all games, including ones not made or supported by Atari (3rd Party, home-brews, and SD carts). C'mon Atari... you can do this!! 🙂
Fingers crossed for the Atari 400 mini. 🙂