Delivery delays...
There will be some delivery delays between January 26th until February 2nd - there's only me, and I'm at the Nuremberg Toy Fair.
For more details, see this blog post.
You can buy mainline Hot Wheels in pound shops and supermarkets cheaper than I can buy them wholesale, but since I get asked about specific models I've tried to source them from collectors. I have occasionally bought a mainline case to make an order size worthwhile.