Quote "If you want to take your photography seriously, get a digital SLR."
Complete nonsense. I own both a Nikon DSLR and a Canon G10. Both are great cameras and both have their uses. Doesn't mean I'm not serious about photography.
While the overall quality of the DSLR is better then the P&S, there are many times when it's not just more convenient, but more sociably acceptable to have a much smaller camera. I use the Canon in many places (snorkeling, diving, many social events) where having "serious" equipment hanging around your neck may not be the preferred choice.