I totally support homebrew for older console, I love to have brand new retro games for my older console. I own 5 homebrew game on Dreamcast (Last Hope, Fast Striker, Gunlord, NEO XYX and Sturmwind), and Ive supported the Kickstarter of Pier Solar (I should finally receive my copie this month) and Saber Rider and the Star Sheriffs.
For repro, I only support if its a game that was never release in my area (North America) and translated. I own a translated Fire Emblem episode on SNES and plan to eventually buy more RPG never release in NA on SNES.