Yes, I have owned a sub-$5k dac with streamer. Moon 280D is an excellent solution.
There's trade-off's and benefits for combined units - I chose Moon 280D based on how it sounded and my goals (at the time). I currently have Moon 791 which is a pre-amp with a built-in DAC/Streamer and phono stage. I love it and again there are trade-offs I've made that I think are well worth it.
My advise is listen to as many different options as possible then evaluate based on your goals. And consider if you will be using software like Roon or not it creates another option.