If you don't care about resolution, framerates, or
subtle gameplay enhancements, stick with the hardware you have now.
SEGA, along with the excellent Christian «Taxman» Whitehead and Simon «Stealth» Thomley (responsible for the brilliant mobile ports of Sonic 1, 2 and CD), have taken the 16 - bit titles, keeping the
gameplay and level designs / layouts and just using
subtle enhancements to keep the game feeling fresh enough for modern systems.