J.,
You will get a myriad of answers...because there are two camps on this and all that falls in the middle. Old school is ..boys talk later...stories of cousins and kids who talk later grow up to be drs. and professors..others will share their experience with delays.
I would listen to both. I would use your gut. I would get an eval with your regional center now before more budget cuts and because he turns 3. If he needs speech, social skills, language therapy, good to know. The brain is most pliable now. If not, you rest better but can expose him to more language..
Couple of things from the trenches.
Did he crawl? Regular crawl? anyone with history in the family? Any Engineer types.
Any repetitive behaviors? Avoidance. Sensitivity to noise? Hearing? Hearing you tell him something verses showing or touching ( some kiddos have good hearing but not auditory processing..and that it more evident later.
VIsual cues will be your friends regardless with this age..
Also, SLOW DOWN..follow this well known tool O.W.L..observe, wait. Listen.
Also, good book is IT Takes Two to Talk.
I LOVED Baby Babble.dvd. by two speech therapists..slow
Diego and Dora and noggin are good because they are interactive
And Beach boy songs.great language and fun in the summer
I have a son who had speech issues ( a very smart boy) and a daughter who started talking in the womb..and spoke in paragraphs by age 2.5...uses descriptive language now and is highly social. The reason I value speech intervention is for social reasons.
Lastly, find some chatty girl playmates..but ones who slow down for him to get a word in..
have fun!