I totally agree with that and this is what makes the most sense indeed. This is the most efficient way to legitimate Bitcoin like it has been for PayPal for example. If this payment option is given, people (most of which have never heard or seen a bitcoin name and logo) will be curious. Combined with some free advertisement/endorsement (e.g. Max Keiser and the like) it will slowly get traction.

At present it is a very small volume currency. To date with ~10 million bitcoin mined at $12 per coin this is only a $120 million market, a drop in the ocean of paper currency (that can be printed ex nihilo) really. Value will have to increase significatively.

As always, time will tell.