There's another thread on the cost of the 1000 mile checkup. As for the 30K, here's my posting from that thread, probably more relevant to this thread:
When it came time for the first service up on my MR2 (forgotten -- 7500 miles, I think), I called a couple of dealers for prices. The first quoted over $300, and the 2nd quoted about $240, IIRC. I asked just what they did, and they started rattling off a list of things, most of which began with the word "inspect", which to me meant "costs them next to nothing." The guy also listed "rotate the tires". I stopped him to inform him that the MR2 uses different sizes front and back, so they'd better NOT rotate them. He was a bit thrown off by that, but continued right back up with the list of things they "inspect".
At the end, I told him what I wanted were just the 6 or 7 things specifically listed in the owner's manual as necessary for the service. (I'd already done the required oil change.) His response? "Oh, you want our $29.95 14-point inspection." So I set up the appointment.
When I got there, I specified, "I want the $29.95 inspection, please." The response? "OK. That's on sale for $18.95".
Original dealer quote: $240 - $300. Actual price: $18.95 + $20 for an oil change = $38.95. And my warranty is officially intact.
By the way -- it can work the other way around, too. Sometimes they do LESS than they're supposed to. For my partner's recent 36K (or somesuch -- can't recall the specific number) service on his CR-V, the manual specifically listed replacing the brake fluid as part of the required service. The dealership's 36K service (outrageously expensive) didn't include that -- they said they do it as part of their 50K service. But they insisted it wouldn't affect his warranty.
Huh? The manufacturer requires it, and you don't do it??? And you insist that's ok? What the heck are we paying you for???
Lesson learned: research what exactly you need, and compare it to what's being offered. Don't trust anyone to have it right.