I thought about that but I will have an overhead reel as well with power.
What about putting a few of the receptacles up higher? You don't have to do all of them if you don't want to, but as others have said, stuff tends to accumulate on the floor up against walls, and this usually covers receptacles.
Take a good look at any room in your house. Where are the receptacles, and where is your stuff? How much stuff do you have on the floor, and how much stuff is there up against the walls that is 4 feet high or higher?
When you are in a garage, and working on a car/project, the last thing you want to do is have to move a bunch of **** that is piled up three feet deep against the wall just to get to an outlet.
I have the same type of hanging reel cord in my garage as you said you have. But that is not always the best thing to plug stuff into. The hanging cord can get in the way, and I can't tell you how many times I needed to plug a work light into one of the outlets in the hanging cord, and then plug in an angle grinder into the wall so I had enough cord length to reach what I wanted to grind in order to keep the hanging cord and light from moving had I plugged them both into the hanging cord.
The most used receptacle in my garage is actually the one I installed in the narrow wall space between the two garage doors.
This space is just wide enough to fit the surface mount box I used to install the duplex receptacle, and it is about 54 inches up from the ground.
It is easy to access, it is above just about everything else that is on the ground, and I don't have to go looking for it or move stuff out of the way to gain access to it.
Just a thought to make life easier.
Jim