Product review (5 stars): Peace of mind for under $20.  "Replace every 5-7 years" ??  Yikes.
I have a 20-year old Maytag and never thought about the water lines breaking.  Then I read on a DIY site that the original rubber hoses should be replaced every 5-7 years and advice to use these reinforced hoses.
You may shut off the water at the wall connection after every use of the washer.  But most folks just leave theirs on all the time, so if one of these hoses burst at night or while you're away..... wow.  And if you're one of those people with an upstairs laundry a broken hose could be a major disaster.  Really.
When I thought about the mess that could result from a broken supply hose I was sold on the idea of replacing.  Amazon is a good value.
So less than $20 and a few minutes work = peace of mind.
Even if you have to hire handyman to replace these hoses, I'd sure do it.