> Pallets are perfect for ends up butcher blocks
I don't necessarily agree with that. End grain true butcher block will stand up to a knife better than anything else, and will also dull your blades less than anything else, but in a shop environment, I'm not sure that real end grain butcher block will hold up any better than bowling alley. That, and a real end grain butcher block needs to be at least 8" thick to hold together (12" is better). I've got one of these in my kitchen, and love to cut on it.
Pallets are made from good hardwood, but need major planing to be turned into something usable. Also, while they're generally oak around here, they're kind of like the sausage of wood. And when it comes to jointed wood, you really want to keep the species the same, so that the expansion and contraction is all in sync, to prevent splitting.
The SnapOn butcher block is probably sealed with polyurethane if they're not an oil finish. That's its own headache.