My stickers keep peeling and I have been searching for non peel cubes. Maybe one should be invented where the colors are permanately on the cube itself. Just a thought though. I think it would be much easier than reapplying stickers six months. It would be cheaper for people too, so they dont have to keep buying stickers and what not.
The advice given before applies to you too - replace the stickers (or get a different cube). Cubesmith stickers don't peel, they only chip. Cubesmith tiles don't peel or chip. Cubes with different colored pieces don't need stickers.