A dozen parallel shafting is about 24 dollars and then you spend about 1.40 for other components. So you can make good arrows for 3.40 an arrow. The spine matching is not so bad price wise. It is the Federal Excise Tax on wood arrow shafting which makes wood arrows appear so "expensive".
It is a per shaft tax of a fixed amount. On an  expensive carbon shaft it does not increase the price at such a percentage as it does on the wood shaft price.
I already witnessed 7 dowel arrow failures and luckily the shooters were not injured. But after the incident they were educated and didn't use dowels anymore.

I just had a brand new carbon snap clean in half on release. Half of it shot 50 feet into the air and the other half swung back and cut my face. Still havent had that happen with one of my dowel shafts.