Review on Lansky LS7 BRK Sharpening Hone Kit by Anthony Shields

Purchased 2nd November 2018, broken in half on 17th March 2019 I asked WHY Revain has two adverts for Lansky, Fine Diamond, Stone, both of which Lansky mailed to have ? Is a $21 brick better than a $14 brick? The photos match, both ads say "From Lansky". No description in the ad for $21. Probably a mistake on the $21 brick. It says USA Made Lansky. It worked as expected with the rest of my 15 year old kit (with updates). If I sharpen 2 knives a week then that's a lot for me, it should have lasted a lot longer. So. Is an expensive stone better? I really hope so!