I've pretty much given up on ever using my digital camera again for a couple of reasons.:
1. My cell phone has more megapixels and thus has the ability to take better pictures.
2. My cell phone can automatically upload photos online.
If we're talking about photos for shmax.com, and it produces a result similar to a digital camera, you'll not hear us complain. However, both your arguments are a bit flawed:
1. more megapixels does not necessarily mean better photos. There are many other variables involved--ISO setting, white balance, and exposure are 3 key properties of digital cameras that are crucial when doing product photography. I've never personally fiddled with my phone camera enough to know if those features exist, but I wouldn't count on it.
2. I don't think you're likely to ever gain much by being able to upload directly online--practically speaking, every photo you submit to shmax.com will need at least some post-processing in PS (or *shudder* GIMP).
But hey, maybe you'll surprise us. Good luck!