Wish I could post pics for you berkley to show how I store mine. To start off: many collectors hang their cars on the walls still in the cards as the card artwork can be pretty dang great. I did this with my 3 sets of Disney cards. Many collectors will go high end in glass shelving to hang on the wall which will hold (depending upon size and cost) from 25 to 100 cars. Lots of collectors have them out of the package and continuously changing the display in shelves or across desk tops/etc. Many collect and keep on the card for resale and store them in giant plastic tubs in closets and many have a full corner or room devoted (sound familiar comic fans?) to showing off their favorites.

For myself: there are several reasons for collecting these little go-buggers. Thrill of the hunt, cool looking vehicles, classic styling, creative visual/design/colors and such. I am loooong past playing with them though. So part of the joy is in the viewing of these miniature replica's of fantasy motor muscle that we might all wish and dream of having one day. Enjoying replica's of classic and or fantasy designs. Having old/antique styles from before my time as a gateway into the past. Another is the tactile sensation of holding and feeling the minuscule monsters in the palm of your hands. Reliving a lost part of childhood: I never had many back in the late 60's and early 70's. Just a shoe-box full that were all well played with and carried around as something small you could take when off to visit family or church or other places. So my collecting today is something I can afford and enjoy that tickles that child portion of my brain, similar to comics books and cartoons.

Tons of ways to display/store the cars. I utilize a smokey clear plastic Thread Organizer container which is perfect for the cars as the containers are 2 sided and holds 24 cars on each side for a total of 48. Organizer measures 14 by 10-1/2 by 3 inches with a hinged door on each side to open up and see the cars. They cost around $20-25 each and you can order from Amazon or find them at most any craft store.I purchase mine when ever Joann's Fabric/Craft stores have a sale and get 2 containers for $20. The great thing about this way of storing them is that you an stack them up inside your closet or in a corner of a room quite handily. In the container you can place the cars either flat so you see them from the top or stand the box on its side and place the cars within so you view them from their side. There is just enough room in each single spot that smaller vehicles will flip/roll over/etc. I tend to place my cars inside so I can view them from the side seeing the body work and creativity. I also take pictures of the vehicles inside the storage boxes and use as computer screen savers at work. I am constantly pulling out a box and messing with the cars inside each box to run my fingers across them and to look at them and also for rearranging within the Thread box. At work I keep 6 on display on my desk under my computer screen and will rotate them or exchange them out from home every so often. 

In storing the cars inside each Thread container, it is up to you the individual as to how you want to collect them. I have mine all set up  in each container in different ways. 2 of the boxes are any/all vehicles with flame paint jobs. Another is filling up with just sports cars and another with just convertibles. 2 Containers I am working on is with classic/vintage Detroit Steel muscle cars like Mustangs, Chargers, Mavericks and such. I have one container working on filling with vintage old time vehicles on one side and the other is with fire/rescue vehicles. The great thing is with so many different types of vehicles from Hot Wheels and Matchbox you can decide upon whatever interesting vehicles you may like to begin collecting.