i have for about 3 years bought most of my models from Toronto Motorsport ([
www.torontomotorsports.com]
but i wait for their sales, then buy all the ones i want, and even with shipping from Canada to the UK, i still get very good deals, like maybe £7 per 1:43 car or something like that.
but recently Ebay has been my main source. just make sure you ask question before you bid if you're not sure, and if you're not happy, just don't bid. there will always be another one along. and make a limit for that particular model, and stick to it. if the price starts getting silly, just think to yourself "its too much for me, i'll let it go, and look out for another one".
RIP Jules, never to be forgotten. #KeepFightingMichael