Lot of really neat ideas, but the ones that grant movement speed would just flood the world with salt.At 2k Per bag space it would actually come out to about the same growth as bags in a normal expansion (I think each adds about 5k-6k points, and I would guess a normal person gets about 50% of them so that's 1-2 bag space pir expansion). as for the big tir rewards I wanted them to be something tangible so it feels like you got something helpful and unique by doing it, I did think of a few more.
1k: Unlock more hair colors from the barbershop
2k: Reduce the cool down of your hearthstone by 20%
3k: Unlock more hairstyles from the barbershop
4k: Rewards a unique battle pet
5k Boost base movement speed in the open world by 5%
7.5k: Rewards a Unique Mount.
9k: Over 9000 Title.
10k: reduce all riding level requirements by 5 (60% at 15 100% at 35 and so on)
11k: Unlock more hair colors from the barbershop
12.5k: Boost the duration of Food buffs by 50% (stacks with pandaren racial)
14k: Unique Pet
15k: Boost mount speed by 10% (stacks with all other boosts)
16k: Unlock more hairstyles from the barbershop
17.5k: Portals are made available in SW and ORG leading to out of the way places around the world (think like upper EK or Mid Kal for Ally, Mid EK or lower Kal for horde
19k: Unique mount
20k: Gain a sprint ability that can only be used on mounts (30 min CD boost speed by 1000% for 30 seconds), grate for moving large distances not as useful while questing or gathering.
22.5k: Unlock Unique animations that will occasionally take the place of your normal ones (Can be switched off in the interface)
25k: your hearthstone has become attuned with the world during your travels, you can now save a second destination.
27.5k: Boost movement speed while dead by an extra 300%
30k: Gain a Shirt that gives the buff "All I got"
Ect...