Chipped wood, like mulch or hogfuel type stuff, does not make great bedding. It is usually delivered wet, so unless you have a great big dry driveshed or suchlike where it can dry off thoroughly does not make good bedding for that reason; also it is typically coarse, so not very absorbant, and mechanically harder to spot-clean than shavings or straw are.
It can be useful as a temporary amendment in the run, as long as you remove it if it starts to break down into fine organic silt and cause mucky swamplike conditions when it rains.
The thing about cost is that unless you have really quite a LOT of birds, it is pretty easy to manage your coop sanitation so that you are not actually using all that much shavings. I dunno about where you are, but here shavings are about $5 for a compressed bale that will expand 2-3x in volume when opened, and with the right management that can go a LONG way.
JMHO, good luck, have fun,
Pat