So buy one. Enjoy the quiet.
FWIW, trying to build a silent PC is a
worse addiction than water cooling. I'm trying to stick with "quieter than the ambient noise level is good enough", which means I only get annoyed about PC noise late at night.
Remember that there are other noise sources in your PC (other fans, hard drives, mostly). It might be worth visiting the
Silent PC Review forums. Don't expect the same rigor you get here, but folks there do have silence as a goal.
IMHO, for many folks
here,
cooling is the goal, and "less noise than air cooling" is an incidental byproduct. Those who don't understand (yet) that engineering is a matter of tradeoffs between goals and that their particular set of goals are not the
only ones possible are going to consider your tradeoffs, well, wrong. The folks who
know this and are simply
not interested in silence will, knowing what the reserator is, probably skip this thread.