Probably snapped up quickly. The XM series are popular mice, for good reason. I had the XM2we and it was great.
I'd rather the XM2 than a Superlight anyway. Though just ordered myself the new Pulsar Feinmann F01 Magnesium as a birthday treat to myself (and only 5000 made worldwide) and will likely call it a day there as far as gaming mice go
Though if you want amazing performance and quality without breaking the bank then currently the DeathAdder V3 HyperSpeed is £88 and is exceptionally good, lighter than most other gaming mice, surface coating that feels so nice, rigid for both palm and claw grip etc.