Moisture & Solid Hardwood Floors

So I went looking for solid hardwood floors yesterday & the recurring theme seemed to be "moisture". More than one supplier mentioned that if I am looking to install solid hardwood n a hi-rise, any higher than the 5th floor, then I will see buckling of the boards in the winter, due to a lack of moisture. The problem will be compounded if I go with wide planks. However, to avoid this issue, I... [more]

So I went looking for solid hardwood floors yesterday & the recurring theme seemed to be "moisture". More than one supplier mentioned that if I am looking to install solid hardwood n a hi-rise, any higher than the 5th floor, then I will see buckling of the boards in the winter, due to a lack of moisture. The problem will be compounded if I go with wide planks. However, to avoid this issue, I was advised to install engineered hardwood. I was shown these beautiful engineered floors by Mirage, so aesthetically I am not really opposed to engineered, but it is a matter of perception (solid is better than engineered) & I was told solid hardwood is better for resale. So my questions are: is the moisture issue real? Will the planks unbuckle once moisture is restored to whatever the optimal level is? Should I consider engineered hardwood? [less]