Randy Moss was good for 10+/yr until he got to Oakland, then had a brief renaissance with NE, 11(6) in '07. He's the standard.
DeSean Jackson is good for 7+ 30+ air yard receptions per year. Same for Calvin Johnson. Andre Johnson gets 5 or 6 30+ per year (remarkably consistent, it's always 5 or 6 except for one season and last year when he was hurt), but usually only 1 or 2 40+. Larry Fitzgerald is the same way. Steve Smith is also good for 5 or 6 per year, his best coming in 2008 with 9.