My GF & I both need about 5K miles to reach next threshold - we had an offer to buy miles, but would rather travel. We are somewhat flexible with schedule and travel, but would like to find the best deal. I've searched this forum & flyertalk and would appreciate any help anyone can offer. FWIW, we both have co-brand Amex & Plat Amex - just want to find a good trip that covers 5K miles and keeps the price around $600 or under. Thanks in advance for any help/suggestions.