It similar to fly tying. It takes quite a while to amortize the cost of the equipment before you see any "savings". So, in the long run, you will save money and be able to build exactly what you want. In the short term, if only to build a few rods, no, you won't save money.
It's about the enjoyment of building something that you can't get elsewhere, and it's fun!! See if someone local to you builds and have a look over his shoulder. You'll know!
Mike B