Estes catalogs up here (Canada) are sold, not free. But the local hobby shop has one tied to a string so you can look thru it.. To get a catalog in the mail, you need to make the effort to: search for the source (estes.com), put your info into the boxes, and press send. A few weeks later you get one, but their interests have then probably shifted.
On the same token, you can look at other hobbies. As I mentioned, look at R/C flying. When I started, kits were the only real way to get into the hobby (buy a kit, build it, finish it, then go fly it). ARFs came along, then park flyers & foamies. The new big thing now is quad copters & FPV racing. Neat, but not my thing. As for R/C kits, very very very few out there now. (Great planes has pretty much dried up, SIG is probably one of the only manuf. still producing kits in any volume..)
And, apart from Micheals & Hobby Lobby, how many hobby shops are left? Ones that deal with "hobbies" as we call them: R/C planes, cars, plastic models, train sets, rockets, ship building etc.. How many are now considered 'educational toy shops' and carry very few of these items?
And, remember, this is a very US oriented hobby. Canada has 3 (!!!) decent hobby shops (online mainly) that deal extensively with rocketry. We have NO kit manufs either (except a little motor maker .. Cessaroni or something.
) We did have Sunward & Canaroc at one point.. Estes won't sip to Canada, or anywhere outside the great 48.. Others will, but the cost to ship can be limiting!
And, I think one of the biggest issues is motors. getting motors.. $10 a launch for a D12?! (the D12 2-pack is about $19CAD up here.. and only about 3 places on the island of Montreal sell motors)