Winter Tire Recommendation Question

[srjones]

Hi, new to X5world.
I need some help re Winter Tire recommendation for my 2007 3.0 X5 with Sport Pkg.
Current tire size is 255/50R19/RF 107H.
I live in Texas but winter in Steamboat Springs, Colorado.
OEM tires came with Michelin Latitudes which have seemed fine.
Current mileage is about 35,000 miles and about worn out.
I want to get replacement tires for general all around use but I also want to now get Winter Tires for the time in winter in Steamboat.
Does anyone have any experience with Michelin Latitude Alpin HP in 19 inch size?
Last question what mileage could I expect with winter tires? Is it ok to buy in Texas and drive up & back to Colorado or better to buy the tires & rims in Colorado? Does the drive up & back from Texas & Colorado hurt the winter tires. Mileage roundtrip about 2500 miles.