I agree with this too. I adopted uad plugins back in the uad1 days. Back then, I was really impressed by what they had and what they sounded like. I have since stopped purchasing their plugs in favor of competitor native plugins. Uad is an expensive platform, no doubt. Other options have come from multiple companies. No two emulations sound the same but they are in the ballpark of one another, which is fine with me. They still get the work done and it still sounds good. Hardware is perishable, more so than software and systems are more than capable of supporting native plugins these days. To me the uad cards are a dongle that becomes obsolete like digidesign systems of yesteryear that shared the same concept but digi systems kept your latency low where uad blows it up.
I still use some uad plugs in sessions, but it is only because I have been using them for years that it speeds up workflow due to familiarity. I wish I was 100% native though for simplicity.