I wanted to like Brooks saddles, but they just didn't work for me. Selle Anatomica is the only thing I've been able to ride on for any length of time. I have many friends who love both, however, so it could be worth the money to try them out--sometimes bike shops will let you do that, I think, but it's hard to find one that will stock these saddles (at least my LBSs don't). I think Velo Orange may sell some leather saddles that are similar and slightly cheaper (but not that much cheaper). Selle Anatomica has sales pretty often, at least.
Good luck! Many have struggled to find butt comfort on long tours. This is one of those things where I say just go ahead and spend the money. Either saddle will last for years. I'm assuming the Velos probably would too, but I haven't tried them.