The title of this post is purposely 'Electronic Magazines' rather than just 'Robot Magazines'. Elektor tend to have 'mini-projects' (ie cheap) and 'yes' you may get the odd 'ampilfier' kind of circuit - but you never know when such a circuit might prove useful (like when you/I do a Text To Speech tutorial
or if you wanted to have a sound sensor on your bot).
They then also do mainstream projects - most of which are very affordable and you can buy PCBs etc direct from them if you need to. They very rarely do mega bucks projects.
But enough about selling on their behalf - check their website.
But I would add that now microprocessors are so cheap then they have pretty much taken over from standard discrete digital circuitry. So a large percentage of what they publish is microcontroller orientated and they do a lot of robotics stuff. For the total newbies you can also buy, via their shop, the controllers already programmed if you want or you can just download software from their site (they dont tend to have long software listings in the magazine).
They often also publish fact sheets on certain standards which is helpful - like, say, the standard msg formats from a SatNav chip or the file formats for POI (Point Of Interest) files to feed a SatNav. I've recently purchased the SatNav chip they used in one of the projects and it looks brilliant - its about 1 inch square and transmits position, bearing and velocity via a serial link. So just plug it into your UART, or Hyperterminal, and get navigating.....