Unlike many other comic dealers I pack my books well before shipment. Therefore, I do not bag and board every comic I send out, mainly due to cost and time. IF I BAGGED AND BOARDED ALL MY COMICS I WOULD HAVE TO RAISE PRICES AND SHIPPING FEES.
A quick survey of customers some time ago indicated they did not want bags and boards if it increased the costs of the comics. If I buy a comic bagged and boarded, it usually stays that way.
Expect newer comics, sale comics, and books less than a buck will be grouped (4-6 comics) in a single comic bag. Expect most other books outside those categories to be individually bagged or individually bagged and boarded.
All comics over $5 in near mint are usually shipped bagged and boarded.
I ship ALL MY ORDERS IN BOXES TO PREVENT DAMAGE.