Raj, I definitely agree with you that there are very good reasons to get a G6 *instead* of a DSLR/SLR - the very same reasons that you describe.
However, I think that if your ultimate goal is move to a SLR and use it, then you probably want to start there. Things like shooting macro, etc. all come later - ideally, a 50mm prime or a standard zoom (28-70 or 28-105) and an SLR are all that you need.
But as you say, there are different views on the subject, and ultimately, all that matters is whether your camera lets you take the photo that you want.
Cheers,
Vandit
