Geez, Jay. Are you getting kickbacks from AARP again?
Pay for a quality installer on the vinyl if you are going to buy a quality product like these. When people buy the cheap roll out of the bin at Home Cheapo, then I don't worry about it.
Ask the floor companies which flooring products they have to do the most repairs on. They are the ones who see the damage, the wear, etc. Ideally, ask an installer or repair guy, not the salesman. Most stores will let you at least talk to their scheduler.