That was the original Mongoose plan with the game, wasn't it? It was a good idea - stat card, rules, dice and a plastic ruler all in the box. I can see the appeal for game stores, and pre-made armies re always a good starting point. A number of minis companies offer pre-build armies for a range of systems these days, and I increasingly see rules companies like Too Fat Lardies offering starter forces by other companies on their sites. So yes, it's a good idea.
Does it come down to cost in the end? As an alternative, how about a number of pre-bundled armie with stats and QS rules as a starter pack for games stores, with extra tournament rules, posters and the like?
As a buyer of the game, I'd love to see the stats up for free on your site, but I'd pay about the same again for a book of fantasy army stats and lists. I can take it from there for my own. It's something that I'd like to see more with fantasy minis than the historicals - even to give us an idea of what stats and special abilities will make a dwarf army play differently from elves or undead.