I guess that depends on the time span you're looking at. After around 8-10 years, the cost of my laser surgery will break even compared to the cost of regularly buying contact lenses. But that's not the only factor that needs to be taken into account - Now I have less luggage when traveling, a higher quality of life, and I can see unaided for all hours of the day... Yes it can be cheaper to keep wearing glasses or contact lenses but it's a different quality of life.