It seems like once you start adding all this up, it is going to be quite a lot of money for a tuning setup..
Reading your last post, you may want to take a step back from this sub-forum and poke around the ski-gear review threads. Perhaps the money could be first better spent on a new pair of skis-or 2nd pair of skis, so you have something worthwhile to tune up?
The rotobrushes are not necessary if you are just skiing for fun. The brushing is how much effort and time you want to put into it. As you saw from other responses, some people don't brush at all. I only go down the ski maybe 3times with each of the 3 brushes. Again, i'm not racing so I don't need perfection. Setting up and plugging in your drill for your rotobrush, you might not be saving time at all-especially if you're only doing all this for just 1pair of skis. If you have a couple pairs of skis, then you can setup and do more skis at once then more time will be saved.
The wax will not last longer with or without the rotobrush. It is just a tool to clearing out the excess wax, so your first runs will have a really effortless glide.
If you want your wax to last longer between service, The rub-on wax you are using is not going to cut it. You need to try the traditional method to hand-iron wax. Then if the ironed universal wax isn't lasting as long as you like, try ironing in colder wax a few times-even if you switch back to warmer wax on top or on your next wax service.
As far as edges, if you are able to stay out of big damage, it's is mostly just burrs. You may just want to get one of the simpler adjustable edge tool +gummi stone for the main purpose of just maintaining and knocking off the burrs, or you could even free-hand it with just the diamond stone (is doing something freehand that safe to say here). Leave the base edges alone. Then take your skis in for a professional tuneup once a season (or more often). The shops typically have tune specials pre-season which can save cash.
On the other hand, if this is something that you really want to do, and it bugs you, then by all means go spend all that money on the tuning gear.
Edited by raytseng - 2/5/13 at 11:16am