Pros & Cons of Buying an Integrated with Built-in DAC?

I'm currently looking at integrateds. Ideally, I'd like the next one to be my last and I'm wondering whether I need to purchase one with an internal DAC to provide flexibility for computer audio should I be compelled to go that route in the future. Will today's DACs be outmoded 3 years from now? Am I better off waiting to buy a separate DAC until I really need one? I'm confused. Technology is speeding up and my middle aged brain is slowing down!