In my completely unprofessional opinion which if you have half a brain you won't even pay attention to let alone listen to - I've gotten a dozen or so tick bites in my life. 3 of them fully engorged. Not all ticks carry disease, the important thing is to pay attention to how you feel otherwise. I mean, you don't go get checked for malaria just because you have a mosquito bite right? If the bite starts to look strange or you start to feel strange then, go to a doctor.
The weird thing about this is my fiancee was just bitten by a tick, her first and it didn't even engorge. She got lyme disease - she is on the antibiotics now. The cost of the antibiotics? $6 at wal-mart for 14 days. Most antibiotics are dirt cheap (in my experience) and a doctor's office visit just for a check up isn't so bad on the wallet.
Another thing you can do is go to more reputable sites, which there are plenty of that have good info on lyme disease (which I'm guessing is your primary concern).
Lyme disease - MayoClinic.com
Lyme Disease Causes, Symptoms, Diagnosis, and Treatment on WebMD.com
DVBID: Home Page | CDC Lyme Disease