Apart from ignoring the topic and providing yet another advertorial, you've also swallowed the avi propaganda a touch too much.
AVI does have dealers who want to make a profit, they're not in it for charity, and they even have two dealers outside the UK, which mean s shipping costs. All this needs to be factored into their prices. Their speakers are worth what they sell for, no less, and they include sufficient markup for all - the MD.s no mug. The direct marketing is there purely to give the two company owners extra icing on the cake. Not denying the model is tight, if they had to pay for advertising the prices would go up, plus being a tiny company they wouldn't be in a position to get the discounts from big bulk buying.
You're not getting remotely near £2000 of speakers. Work it out (obviously guessing here, but in the name of realism): speakers around £ 30 each, cabinets plus finish about £200 total, electronics about £400 total, and the rest of the £1300 they sell for covers expenses, labour and profit. In terms of speakers only, cabinet plus drivers plus normal crossovers would come in at around the £400 mark, which you'd probably sell at the £900 mark.
So, as with everything in life, you're getting what you pay for, there's no magic, it's business, that's all.
And on that note, a very merry christmas all. we're off to do the annual rounds of spreading light and controversy.