My son needed speech therapy, and we couldn't get it until I got an IEP in place for him. That's all he needs - 1 hour of speech per week. He's not a drain on resources, he's not a distraction in the classroom, he's no more work than anyone else's little snowflake.
He was diagnosed with apraxia at 20 months (never made any sound at all up to that point - no crying, grunting, nothing.). We put him in an intensive speech therapy at 22 months, a special preschool at 3, and he finally made noise at just-shy of 4.

Lots of time spent and lots and lots of $$$ spent out of my pocket. The program I had him in was fantastic, but the hours are M-Th 9-3. He's in school at that time, and I'm not willing to pull him out a couple hours a week in order to get him the therapy that he NEEDS (besides the school probably being against him missing that much).
He's a good kid, and I know for a fact that there are other kids in his school that have IEPs that aren't a drain on the teacher as well.