I don't feel the least bit guilty. Hilton has nice hotels but my experience with their rewards program is that they are far from consistent in crediting my stays. I had a $1,000 stay at the Berlin Hilton last year that never got credited despite writing two letters and phoning several times, eventually I gave up and the time for retroactive credit is long since past. My feeling is that this loophole makes up for the fact that I need to follow up so much of my activity with letters and phone calls to get proper credit. And based on the posts I read in this forum I don't think I am the only one who has experienced inconsistent results from HHonors.