Comments Keep it simple.
When you do stuff in house you have to have space, benches, tools and overhead. If it's simple assembly for prototyping you do it in house. If volume you farm it out. The trend is definitely toward virtual manufacturing everywhere. You design and sell, and farm out the operations side of the house to people who know exactly what has to be done and who will do it right, at best prices and JIT at ISO9000 quality standards.