I guess your perception is that if you only use each tool for a small number of hours in any year, you may not be getting your money's worth. As I do a number of gardens, some quite large, and some of the work is quite intensive, perhaps I get a clearer view of the value of tools in terms of how much work I get out of them.
I'm convinced that generally you get what you pay for. For instance, I tried to make do with a petrol strimmer that was always on the edge of being inadequate. For another £150 I've got a machine that will easily do everything I want.
It's the same, with reservations, with hand tools. You can buy a spade for a few pounds in Homebase, but it won't be the same as a well-made stainless steel spade costing £30, which will make your work so much easier. The reservation is that some hand tools are made to be pretty or trendy, and can cost far more than they're worth.