Ah, motorbike. That's the small but essential detail I was forgetting. In which case you have my sympathy, because although I've never had a go on one, I thoroughly approve of motorbikes. I suppose it makes sense that they'd have to be better somehow, as they hold more pressure, and of course, if one of them blows out, you're /really/ screwed.
As for graphics card, I spose I'm just as extravagant occasionally, only for me it tends to be microphones and suchlike. I should spend more on instruments really, since I'd probably get more out of a mandola than I ever would out of a graphics card.