Is 1,500 receiving yards a big accomplishment in a season?

So some people consider Randy Moss the best WR of all time, I just looked it up and he only had one season of 1,500+ receiving yards. Last year 3 different WRs made it. Does 1,500+ receiving yards make you elite, and is it hard to achieve as a WR in a season. Why or why not???

Edit: Can we stop with the Randy Moss played in 16-game seasons, Michael Irvin has 2 1,500 yard seasons and played before him!