I can foresee that the same thing that happened to Montpellier kits in 2012-13 will happen to Leicester kits this season.
Manufacturers produces a limited amount of kits, the team goes extremely well, everyone wants it, they go out of stock.
Next season they produce a huge amount of them and... magic is somehow gone. (Not really gone, but it is definitely not the same). Montpellier 2012-13 can still be found BNWT on eBay and stuff like that.