I'd still use glass jars. What is the cost relative to your profit? Probably not much at all.
Plastic is porous and will leech out your quality (smell and potency). Plastic sucks. (just my jar-headed opinion of course)
Mason jars on sale are less than a buck a jar. Quart jars can hold 1 1/2-2 ounces (depending on your strain).
For large quantities I find the 5 gallon buckets with screw-top lids to be most efficient. After drying is complete, weight can go into a turkey bag, tied into a knot, then dropped in the bucket and screwed tight.
paper bags to cure... turkey bags to store.... hang plants whole upside down for 3-5 days until outer fan leaves start to get crispy; break plants down into branches that fit into paper grocery bags; fill em 2/3rds full and roll the top closed... open and shake every other day... in 2 weeks buds will be perfectly cured and ready to smoke.
i get better smoke this way than using glass jars or drying racks to cure my buds.... a lot less work and a lot harder to fuck the cure up