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! 

stuartk
Thanks guys.😀
There were lots of talk about adding a separate DAC. I thought perhaps I could upgrade this way rather than ditching the Hegel. 
The SQ on Hegel 80 is solid. Just curious as to should I ditch it and update to better one up my one box to multiple, which I am planning on it and keep it the Hegel for my small room.

I owned both a Parasound P3 and P 5. I was told the P5 dac was really good. well, it was better than the Oppo redbook dac but the dac in the Audio Alchemy DAC/PRE is terrific
Sorry that did answer the OPs question

It seems dacs offer the biggest potential for sonic improvements , but outboard dacs can get pretty pricey. The AA DAC/PRE MSRP is $1999, a veritable hi-end bargain, especially when paired with AAs PA 1 stereo amp