I have a Zodiac 2.85m SIB with removable floor.
There is nowhere to store it inflated, so it goes back in the bag after each use. I will unroll it to dry out if it was put away wet, but apart from that l take no special care.
The boat has now done five years of use, and has probably been in and out of the bag over 100 times.
It's currently bagged up on a shelf in the garage and has not been touched for months.
All l can say is, it is still in perfect condition. And it has launching wheels on the transom, which make it impossible to roll up as well as it normally would.