In my opinion, getting a quality setup now on the digital side is a worthwhile investment even if it might be surpassed in five years or whatever quoted timeline. Because one thing that is irrelevant is of time is having a setup you can enjoy. A component with good isolation, clean power supply, usability, etc will still be providing that same quality five years from now.
If a setup today makes you content for years to come, that’s what counts in my view in terms of making an investment.