A little perspective is need though. BMW sold nearly 45k 3 series in the UK in 2013 alone, another 41k 1 series models. TOTAL Lexus UK sales touched just 9k units. Your chances of seeing a Lexus on the road is low, full stop.
Neither does BMW, Audi or Mercedes. And £36k for the Luxury? Its more like £30k?
IS300h Luxury is £30995, if you add Nav (£1995) and Leather (£1400) and Met Paint (£610), you're up to £35k. Elec seats comes with the more expensive leather option, includes ventilation and heated seats. Its standard on the F-Sport (without memory, optional) and Premier models (memory std).
Sticker price - no one pays sticker price do they? A 3k discount is worth mentioning + whatever freebies you get thrown in.