I've been offline for a while, so obviously haven't replied, but thanks to those with the kind words.
As far as questions about the fan WxLover and I use, it is rated for 70,000 hrs (about 8 years) of continuous use in temps well above even what I get, and mine has been in perfect continual use for two years. As far as drying out the sensor, truly couldn't say, but the 31 does drop quickly when it gets to about 3-4%, (as I've stated in another thread) compared to the ASOS's around me, but I've found that acceptable considering it absolutely rocks above that. Even <3% is not too common here, so I can live with it, especially when compared to my SHT11 and 15. The 67 CFM is not too much IMHO (I think my obs prove that), as long as the fan is NOT sealed in, but it absolutely need not that much power to be effective. I chose this fan not just for it's performance in my heat, but the red LED located on the ISS that tells me the fan is getting power 24/7, so I'll know if the GFI has tripped. Very convenient! The ONLY downside is more cleaning of the sensor and chamber. I'll take it!