So besides buying more, what other options do you have? Let's take a look. Some of the options is biased towards Technic, but I hope non-Technic fans can also get some starting points.
First, I would recommend watching the hilarious keynote by Hillel Cooperman from BrickCon 2012. It's 25 minutes, but worth it. (Not for your kids though.)
Ok, now that you have realized where you are on your path, let me show you some pointers. (Just in case you are wondering: AFOL = Adult Fan Of Lego, MOC = My Own Creation.)
Most importantly I recommend you try to build things yourself. Some of these places may give you inspiration:
Rebrickable. This is a site for people to share their creations. While it is not necessarily easy to navigate, the best thing about this site is that all creations have building instructions available, so this is a great way to get started. (Yes, some instructions cost money, but many don't.) For many creations you are able to download an LXF file that allows you to investigate a virtual model in Lego Digital Designer.
It may be helpful to look at what others have created. There are several sites specializing in this:
- The good old Brickshelf is probably the oldest site doing that.
- Mocpages is a bit more modern, but has good content too.
- Finally, the most vibrant place is certainly Flickr. Yes, I know, Flickr sounds a bid oldschool in todays Web many-dot-o world, but that's how things are. A good way to start is picking an interesting community and browse around. For example LUGNuts is all about cars, or this group is mostly about aircraft.
There are also some really good books around building that may give you more inspiration. My favorites:
- The unoffical LEGO Technic Builder's Guide from Sariel explains you how to do suspensions, gearboxes and all sorts of LEGO Technic magic.
- If you are wondering about non-Technic magic, The Unofficial LEGO Advanced Building Techniques Guide is a free download that sheds light on some of the magic.
There are some pretty cool magazines too:
- Hispabrick is a free magazine that is available in English, with really good content.
- Railbricks is all about LEGO trains. Premium content too.
- BrickJournal is something you have to pay for. But it's only a few bucks and really worth it.
TechnicBRICKs is a blog you may be interested in. It is mostly about LEGO Company products and specacular Technic creations. On the other hand Technicopedia is the encylopedia of our childhood's favorite Technic sets.
There are probably 1000 others that I have left out, but I am sure these will get you started.