I did have an (Autodelta) 147GTA, sold it to buy the S1 Exige - which I sold because it was just seriously hard work on anything other than a track. Much prefered my Elise, but thats a story for another time.
Re: the RS2 price. Yes, its expensive for a 15-year old Audi estate, but like any commodity, price is set by demand. Its the same reason a Porsche 964RS fetches over £60k when you can buy a plethora of (better?) 997's for a lot less.
In terms of Audi estates, I could have had an RS6 for less. For a few thousand more I could have bought an B5 (twin turbo) RS4, and I could have had a B7 (V8) RS4 for £20k, which is insane when its over 10 years younger. So why didn't I? And why are cars of its era like the M3 so much cheaper?
Its not scene tax, per se - its the rarity, the history, the marques involved the fact that at the time it was an utterly groundbreaking car. Bear in mind this had 315bhp, in 1994, when Porsches own 911 Carrera 4 'only' had 276 - the headlines of "Faster than a McLaren F1!" helped to catapult it into the history books.
Despite the fact that its not the pinnacle of driver involvement - it understeers, the steering is vague - the RS2 is the only fast Audi to have in my eyes. The newer models are far too 'shouty', with huge arches, massive exhausts and various bling, as well as being far more common and they lack that inexplicable something the RS2 has that makes you 'want' one, despite the obvious flaws.
Its a car-nerds car. You either 'get it' or you don't. Most of my mates don't, and thats fine, they can spend £10k on their Civic TypeR's, Clio 200's and VXR's. I'll stick with my old mans estate car.