Another way you could do it is look for someone else who needs USAir miles. You could send 30k miles to someone, and they could send 30k back to you. Both of you would net 30k extra miles. Each of you would pay about $350. This is cleaner because no money changes hands -- you both just pay on your own credit cards. This might also be attractive to someone because it really requires no trust on anyone else's part -- you do the first transfer and they know you're legit. (Although it would require trust on your part.)

The downside you might have is that I think most of the people here who wanted to get miles under this program have likely already done it and you can only accept 50k miles in your account. If you were preferred, it would probably help -- because your trading partner would get a 25 percent bonus on top of the 30k miles, which might make it worth it worth it to someone.

For what it's worth, when the program was first announced, I posted offering to do a preferred/preferred swap, where we both would get 62.5k miles for $567.50. I got no takers. I ultimately got trial preferred challenge from US and did a swap with a family member.

Lastly -- an even easier solution for you if you can't find a trading partner is to do a swap with a friend or family member that has an account. For example, if your wife has an account, send her 10,000 miles. This will give her 20k miles and you will have 40k. Now, she sends the 20k miles back to you. This gives her zero, and you now have 80k. The only down side is you pay the $37.50 fee twice instead of once if you can find a single transfer partner. But, still, the overall cost will be about $375, which is not too bad for 30k miles.