I'm chiming in a little late, but I think how you ultimately get this product to market should be determined by the ultimate goal you have set for yourself regarding this product and your business.
For instance, if all you want to do is get your name out there and make a little bit of money, then you should definitely find someone willing to manufacture it and wholesale it.
On the other hand, if your goal is to put out more products and create a business that eventually will give you maximum profit, then you should manufacture it yourself and sell it exclusively through your company with no wholesaling.
The first scenario is much easier with little profit. The second scenario requires much more work and a vast knowledge of marketing, but can ultimately create huge profits for yourself.
I'm just offering a different perspective from personal experience.