So I have an old audio interface, it's a Tascam US-122. It was one of the first USB interfaces to come out, but it still fits my needs pretty well. I only need to record a single guitar track at a time, the rest of my stuff is completely electronic. I was wondering though, would a newer, more expensive audio interface make a difference in terms of audio quality and fidelity? I was thinking this because I can't understand why there are pricier audio interfaces out there. I mean, I already have 24-bit resolution (which is what high-end AI's offer), so will the extra cash pay for a better analog to digital conversion algorithm or something that would improve sound quality? Or are the high-end audio interfaces pricier because they have more inputs and better latency (but offer the same audio quality)? If I can improve audio quality with a more expensive AI, then I think it's time for an upgrade. Thanks.