Was around £85 about a month ago.
Mine came with a genie (poo)
Love mine it's a kick ass tool to own. Invest in good bits and screws and it makes so many jobs dead easy. This thing will drive screws through just about anything. Even water pipes. Can vouch for that. Impact drivers detect when the screw has stopped turning and instead of just stripping the head off they start hammering them round - the effect is very noisy and it bashing away at the screw instead of constantly turning will drive it through things like butter. The caveat is the bits need to be strong and the screws not cheap nasty things. As someone said above once you go down this road you will has a WTF was I doing before moment. Additionally women will find you more attractive.
I've just ripped apart a used pallet and reused it to build a planter. I was actually thinking this morning (genuinely) that the impact driver is my best and most used power tool (I have an old Ryobi cordless - as in 15yrs old). It hammers as it screws (!!!) which results in a very secure connection. Even used it to secure plasterboard to stud walls - versatile!