CSAs are a way to support our local agriculture. We have always shopped at the farmer's market near our home, but Deb pointed this one out to me and I'm very tempted to join! Brad's is farther from us because it's out on 136 between Churchville and Belcamp. There is no guarantee of what you will get for your share, but it is a way to support our local farms to help keep them going by investing in them up front at the beginning of the season.
There are two CSAs nearby that I know of:
1) Flying Plow Farm is an organic farm near Mtn. Christian Church off of Jerusalem Mill Rd.
Full Share $700
Small Share $450
2) Brad's Produce (not organic)
Full Share $475
Full Share Bi-Weekly $275
Half Share Weekly $300