You can buy gift certificates from Spa Certificates in increments of $75 each, that earn 20 points each. $5,000 would be about 50 spa/massage visits, at about $100 a pop each, If you and wife go to a spa 10 times a year, this would last about 2.5 years.

Good deal if you go for massages regularly.

Earning 100,000 points would earn you 4 free domestic flights, many upgrades and a few free flights next year. With 100% bonus match, if you fly 50,000 miles you'll get 50,000 more free miles. (2 more free domestics)

The value of 6 free flights is probably between $1,500 - $2,000.

Not to mention, you can get upgrades for a companion and can nominate one person to Silver Status.