I'm sure that's true. IN my case, I WANT the noise. Anybody that's ever heard the clanking bellow of a 425 hp '09 knows what I mean. Anybody who remembers a 30-30 Duntov knows what I mean.
Honestly, with today's very advanced hydraulic lifter designs, you'll probably never feel the difference in 99% of street driven engines. Even the difference between hydraulic and solid roller lifters. .