Yes. I still play my Xbox 360.
SO does a lot of other people i turned on my Xbox 360 a few weeks ago, and i was shocked at what i saw. The number of users online for "Fight Night Champion" Is the same as it was before the Xbox One.launched. This was shocking to me. I thought for sure people would switch, and never come back. I guess people are choosing their favorite games over better graphics. The next generation consoles have a very small collection of games. only a few are worth playing. Until that changes the Xbox 360 will stay relevant.
I have been playing it more, and more since that day. Why not? All of my favorite games are on that platform.