The only time first matters is in patent filing. If your product is patentable, you should probably file (or publish) as soon as you can, so you don't have to fight someone else's patent later.
Other than that, I can't think of any current large successful businesses that were first to market. It's usually much easier to build something you know can be built (because it's in the market), especially because you can see which parts are important and need more focus.
Other than that, I can't think of any current large successful businesses that were first to market. It's usually much easier to build something you know can be built (because it's in the market), especially because you can see which parts are important and need more focus.