I remember Counter Strike

Counter Strike Global Offensive is so user friendly 

And the people that have not played the previous versions over the years do not understand how amazing their game is!

Competitive matches in Counter Strike Global Offensive is a huge factor in the success of the game to the main audience I'd say. 
When I talk about back in the days I am referring to the days in 1.3 & 1.6 where you had to find a server yourself. 

So the game client looked like this back then. Not quite the big community that the client is today.

These public servers were hosted by companies or private people that just enjoyed having a server where they could play with friends. I became a part of one of those communitys where I could always enter a server and I knew the other players. 
That was very nice in some ways. But that was only for casual play since it was a public server where anyone could enter at any time.

You could rent a server, paying by the hour or in some cases you could get them for free. That was the way to go if you wanted to play a competitive match. But where did you find the opponents?

There were communitys for that as well. Where you could compete in teams fighting other teams on that community. 
However, there were also the "community" on iRC (an old non-graphic chat system). There were certain channels where you knew that you could find other people looking for matches. So you would basically write in the channel "5v5 medium skill our server", describing what level of skill you wanted to play against and if you had a server for the match.

It could take a while to find the proper opponents since not everyone was that serious and maybe the last player on the team was AFK or something like that. So there you sat with a rented server, you thought you had finally found 5 opponents and all of a sudden their last player fails to show up on the server.
If you did not play during that time, it must seem like I am stupid or something for going through all of that to find a match. But that was it, that was the way you HAD to do it back then. 

Coming back from a long break from the game now, coming straight into Global Offensive. I am just amazed with the system. How easy it is to find games. Of course you will be matched together with some annoying people sometimes, but if you were not a full team back in the days, you had to deal with those people as well. 
But now if you are a full team, you can find good competitive matches by just a click. It is amazing!

So final note on this. Enjoy this fantastic game! I love all memories I have from the previous versions but I am so pleased with the way this game have improved over the years.

Old style menus, there will always be a place in my heart for these memories.