yeah, i don't mind air noises, just not clear tones... i'll pass on rumbles too... i get the strangest odd noises sometimes from upstairs of my new place... it's completely un-insulated and metal frame, so i guess it's probably caused by heat from the sun or air temperature outside

so long as there isn't a detectable dominant frequency in the sound and it's persistent it's easy to ignore 

 Yup.

This is quiet to me, compared to work. I love it. I'm really glad that you're getting some much needed peace and quiet!  

 hopefully none of my neighbours will get the genius idea to adopt a fucking noisy 5" tall dog any time soon - the people over the back have two gorgeous cats that i see pottering around the path now and then and they sometimes gather for bbq and i hear them nattering away all afternoon but that's fine compared to chihuahuas lol 

 I can't stand rat-dogs. Their brains are too small for them to comprehend that they don't need to yip at EVERYTHING ALL THE TIME!  

 Not as bad as you think. Or I just got used to it. Not sure.  

 Don't worry it's a choice not a necessity. XD I prefer the stability of stock enterprise machines over quiet custom built rigs. I used to run custom atx rack mount cases but it's cheaper to buy and upgrade retired enterprise machines than it is to build them.