Just called some places to get quotes. Was told the MSRP for the Gold plan on an 08 335i with 35k miles was:
One of the places told me he'd knock $150 off. I've emailed other dealerships in the area with the $150 off quotes to see what their best price is. I copied all the dealerships on the same email so they know that they have competition. I'll report back with my findings.