Insane Hornby Thomas Prices?

Unusually (really?) I was browsing eBay and saw this listing, I really can't believe how much some of the now out of production Hornby Thomas OO gauge models are being listed at;

Hornby Murchoch

and another;

Hornby Dart

Even Edward seems to be getting in on the act;

Hornby Edward

Yes, I know I already have the new version of Edward, but when I bought it, like 4 years ago I spent about 120, new. A few more over priced ones include: Spencer, the flying Scotsman, Bear, henry, Oliver and class "40"

I knew they were becoming more popular (ironically) since Hornby dropped the licence, but I didn't realise just how mad things were going.  Of course these are just 'asking' prices rather than sale prices, but seriously...