03 Vinyl Costs
There's a high start-up cost with vinyl, because you need to make a metal mould from which to produce the disks.
At the moment, 300 double-sided, white label 12s in plain black sleeves will cost you around £600 to produce from a DAT or CD master.
Add more if you want artwork on the label or sleeve.
Many duplication companies will arrange the whole process for you, including artwork if you want it.
At this point, it's usually a good idea to get on some message boards and see if anyone can recommend a good mastering house and/or pressing plant for your disks.