It's not your imagination: many costs really are rising much faster than inflation. The post has a ton of great charts, but let me quote this summation of the evidence:
So, to summarize: in the past fifty years, education costs have doubled, college costs have dectupled, health insurance costs have dectupled, subway costs have at least dectupled, and housing costs have increased by about fifty percent. US health care costs about four times as much as equivalent health care in other First World countries; US subways cost about eight times as much as equivalent subways in other First World countries.
I worry that people don't appreciate how weird this is. I didn't appreciate it for a long time. I guess I just figured that Grandpa used to talk about how back in his day movie tickets only cost a nickel; that was just the way of the world. But all of the numbers above are inflation-adjusted. These things have dectupled in cost even after you adjust for movies costing a nickel in Grandpa's day. They have really, genuinely dectupled in cost, no economic trickery involved.
Read the whole thing -- that summary is only the half-way point.