Most diecast collectors I know own items from multiple manufacturers. I, too, have cars from Hot Wheels, Tomica, Welly, Minichamps, and a few other brands. But most of the time, it's best to focus on ...
I recently ordered over 20 Matchbox models for my collection. I will release each and every one of them from their blister card for an upcoming series of stories. I even bought more organizer cases ...