Games have gotten easier and the retro market is huge.
Since getting my Master System I've remembered the skill required to play (yells in frustration and no saves!!!! Die and you're back at the start. No pressing start, save, start, save..... meh kids today have it easy!!! lol
Back in the day they utilised the hardware to max, made the game as fun as possible and was bug free! The Sega Master System II runs on a 2MHz (yes 2 megahertz) processor and has 2 kilobytes of RAM. Those programmers where efficient at their jobs!
Now it's get the game out the door, send a couple of patches over the web to fix bugs and then charge £7.99 for a bit of the incomplete story from the game via DLC.