Its what... $200? The mainline is worth it either way. The Mainline doesn't roll tubes (much) so you'll save a lot more not going through that in the elusive tube search. If it goes on sale, it's just stars aligning really.
OTOH, $200 keeps companies like BH alive. I have no qualms separating my cash to these folk. Honestly, I can't think of money better spent.
Well, maybe feeding starving orphans...
Maybe.