[6string]

Taylor necks are designed to resist warping but so are other brands like Martins and other brands.
The technology for building guitars has advance over the years and a well build guitar won't warp like the old ones used to. One good thing about Taylor guitars is if there is a problem with the neck, its designed to be easily replaced thus saving a lot of labour cost. IMO for your situation a guitar humidifier and a dehumidifier should protect the guitar wether its inexpensive or top of the line.