That's a cheap air ticket! Still, being upgraded on UA is hard to drag me away from, and I seldom do any domestic USA flying aside from the It'l trips which have domestic sidtrips included free anyway when I have finished messing with the bookings.

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Re Hotel stays, I just checked my Hilton account and my $32 Doubletree is recorded as a valid "stay" as was Westin in the Starwood plan, so if you ASK NICELY the desk staff often allow these to count. They should not I do not think - if they follow the strict rules that is!
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Glen ~