I changed mine last winter just because they were 12 years old. The ones I took off looked and felt just as good as the new ones I put on. It was good for peace of mind, but probably not needed.
I did the same thing. I bought a hose slinky to put on over the hose to dress it up. Thought I might as well put on a new hose while at it. Ordered a new hose to go with the new slinky.
Took the old one off and and didn't see anything wrong with it. Put the new on on anyway. Still thought I wasted my money on a new hose.