Earlier quoted context omitted.
With luxury brands, it depends on what you buy. My mother-in-law still owns and uses 1970s-vintage Louis Vuitton handbags. They are built to last. A hand-stitched leather suitcase is expensive. It will also last until your grandchildren are dead.
If it was made before suitcases commonly had wheels, you’re still going to want to replace it. The grandkids (if there are any) won’t want it.
The grandkids not wanting it may still apply if they are still minors, there would be plenty of time for tastes to shift again.