Opening the basement windows provided some airflow but did not reduce humidity at floor level. 

No humidity to speak of in the summer either that's the big draw back for me for anything East of Denver ... hard to get used to is... plus we get only 3 to 5 inches of snow a year .. and like this year did not get any...

I run servers in my house - so even at 80 degrees the amount of humidity can cause a problem for me. 

That being said, my husband does kinda sorta hold me responsible for the humidity......and anytime it rains.

The flooring that I have put down that was engineered hardwood in the past was not cheap but it is a great product because it withstands humidity much better than just solid hardwood floors. 

For example if your basement is 75-80% humidity most of the time, and you just set the dehumidifier to knock it down to about 65-60% that will feel like a world of difference and it will only come on during the most humid days.

Louis are positives, unless you abhor muggy, humid summers and baseball.

Serious, I would relocate it as you do not want a bathroom without some air circulation as the moisture would lead to humidity and possibly mold issues

It certainly makes it easier to replace boards, but seasonal gap changes as a result of humidity may prove undesirable.  

My exterior contractor fixed a ton of wood siding in my quadplex that was rotted from water and old termite damage. I didnt know but learned (too late) that he should have primed the back of the new wood siding before...