What makes you think that I planned to stop at five of each gem? I'd be willing to bet that at some point there will probably be another xpac and all those gems I "didn't" get would have easily leveled me to max. Also, there's been talks of legendary gems. And who knows what's going to happen in the future? Also, why only five of each? That's costing you gold each time you want to remove/regem. Why not get five for each character? Sorry, but your question was kind of "dumb" and really narrow-minded. Just because you don't want more than five of each doesn't mean everyone else who plays wants to do the same.
That makes absolutly no sense.
I don't know what kind of wierdo you are, and how your brain works, but what you're saying makes absolutly no sense.
1. You just need 5 of each gem because it's 5 to complete the viable slots: 3 armor and 2 on Pants ~
1.1. If you asked me why, you're probably playing all wrong, and your characters are very bad.
1.2. I don't know where do you live, but you need new professors for Math. Of course making lots of "Last level Gems" are more expensive than just take off from gear. Just 2 numbers for you:
Take off a gem: 175k
Let me help, since it's hard for you: Pants = 350k Armor = 525k Weapon: 175k
Make ONE last level Gem: Around 10m.
The money you spend to make 1 Gem is enough to:
Take off gems of:
Pants: 28 times
Armor: 19 times
Weapon: 57 Times
2. Who knows what's going to happen?
Neither me or you; there's nothing going to happen until Blizzard call it, so, it's absolutly uselless to make something that you, a wierdo, is thinking of just to seem cool. If they even release something, I assure you, there will be a lot of profiles to do so.