In the short term, sure, but if there's sufficient uptake things might look different in a few years.
For me, it might not take much - just Walgreens, some supermarkets, and a decent number of local restaurants supporting this might be enough to allow me to leave my wallet at home on a typical workday. Ironically the one card I'd probably still need, my transit card (Clipper), I assume also uses NFC of some sort. It'd be nice if the new iPhone's NFC feature could support that as well.
