It has been registered with few other variations too so I suppose someone might wish to buy it for $100/150 considering you own the original .Com version ... For example, these variations are currently registered: 1. thesatan.net 2. thesatan.org 2. thesatan.biz 4. thesatanblog.com 5. thesatancast.com 6. thesatanclause.com
not really digging this name it feels close to reg fee to me. TheSatan doesn't really make much sense either.
If you can find other entrepreneurs or businesses in the same relevant niche/market (religious/conspiracy/cult) then you can probably make $50+ for this domain. However, if you are just trying to sell it to anyone, then registration fee is what it's going to be more like.