So last year I started tuning my (and my wife's) skis. All went fine but it just took a long time and as a weekend warrior, it meant that I was outside for an hour tuning skis after arriving late on a friday -- not ideal. Looking at tuning card options at local shops and not sure I understand how they are priced. Most of the time, I just want edges and wax and don't need a full tune. Worth it to buy a tune card or just do it and pay as needed? The tune cards seem to be a good deal if you are getting a full tune every time but not if you are just sharpening edges and getting them waxed.

Thanks