I would think that the worst dangers in storing wine no matter where it is stored, is the sudden change in temperature in both directions.
Do you have any provisions for storing presently at all? If not, as your great hobby grows, so will your worries about it all if you are not prepared now or soon! My first thought if you ever plan on building a cellar would be to presently to look around for an old frige and tweak the settings to maintain a good enviroment..then consider either diggin down and make a first class one, or build a "walk-in" which I have done with minimal expense and labor. (I have much info on thesubject if you need, and design templates for the racks.) My 2 cents on the subject, hope it helped.