Laserbits is $235.95 for the 500 gram bottle... and delivery is free for me as they aren't but a few miles from my house. Will have to pay tax though... so I'll see if the Cermark Sales with free shipping works out cheaper... probably a wash, and I prefer to support local if I can. I'll probably buy the 250 gram bottle though and pay a couple bucks extra.... unless I get a lot more large marking, the stuff lasts a long time for me.