It takes maybe 30 seconds to look up an inflation calculator and put in the amounts yourself. I have spent more time than that writing this reply.
The specific one I used is www.usinflationcalculator.com.
I’m glad it didn’t take you long.
Of course it's better in some ways (Retina display, faster hardware), but arguably worse in others (keyboard reliability, port selection). That's beside the point though, as we're not comparing current MBPs vs. 2011 MBPs now, we're comparing the price and value of each at the time when it was current. MacBook Pros are not the cheapest they have ever been by any measure.
But you cannot make the comparison correctly because they are fundamentally different products. Electronics aren’t commodities. In any given time period the 2017 MacBook Pro is the best bang for your buck, even adjusted for inflation.
And obviously the keyboard and ports are way better now than ever.