Some of the video showed they were sewing purses. There is savings there but more importantly there is a lot of satifaction in making things that are nicer than you can buy.
Clothing does often cost more to make than buy but you are making what you want, with the materials you want and it will fit correctly.
Lastly, sewing in a group enviroment gives women (like the work-a-holic) opportunities to spend time talking with other women in a non-competitive venue. Something we have lost and has hurt us.
I hope sewing does have a resurgence.
I sew for the satisfaction of doing it.