No matter what market you're looking to enter, your electronics design needs to be rock-solid if it's going to succeed. The electronics manufacturing field is booming and still barely meeting demand, so there's plenty of room for great products to succeed.
But they have to be great products.
Companies still using "fire and forget" style outsourced electronic manufacturing services, which simply build to order, are taking big gambles with their product. Electronics today need to be more thoroughly tested, better-built, and better targeted to consumers if they're going to succeed.