I was worried about losing mine too.
I've had a few headsets (Jabra BT250v, Moto HS850, SonyE-HBH..)
I bought most of them when they just hit the market. Now, even the Moto and Jabra ones (the ones with the longest battery life) are only Ł20! I paid a lot more for them.
But it's a good thing, as now I'm not afraid to lose them! I mean I'm not "made of money" but I won't lose as much sleep over a Ł20 replacement as I would for an Ł80 one