In our Guild, there's a person in charge of deciding which block will be used every month as well as what colors to use. Then people make the block (as many as they want). The blocks are put into something so one can be drawn out. Whoever made that block gets all the blocks to make into a quilt. I've won twice. Once I only won 4 blocks. Once I won 279 HST's. Usually quite a few participate. You can't win again until you make something with the ones you won.
This is a Modern Guild. There are some older people, but mostly it's younger people in the Guild. Most members seem pretty enthusiastic about the programs like the block of the month.