Long term they are cheaper than wood. But they *are* heavier-- and just don't have the 'feel' of wood. I've gotten used to them, but I don't swing them every day like I used to.
If you found a hickory handle that was any good- you're a better man than I am. The last *good* hickory handle I bought was from an old German guy who made them in 1975. I've had store bought ones split on the first day out.
The ones I got fit fairly loosely and then you poured epoxy around them. I've got a 6?lb hammer, a 12-15 pound sledge and a felling axe that haven't budged in 20 years or so-- and though I don't use them so much anymore, the first 10 years were pretty regular-- and they've all had the bejeezus abused out of them.
Jim