I have a wheel barrow that I've had for about 15 years now. I guess I'm cheap, 'cause I don't like buying the same thing over and over again. All I really do to take care of it is wash it out, dry it, oil it and grease the wheel when I'm finished At this rate, hopefully, I'll have it another 15.
We have a couple that were my Gramps. I love them, 1 is too beat up to use so it's a decoration and the other we use all the time. I also have a couple of new ones too.
I think that having a very reliable wheel burrow is such an important part of having a healthy lawn and home. I can think of thousands of things that I use my lawnmower for.