Yearly vaccines necessary?

I brought my one year 3 month Beagle mix to the vet for her annual heartworm test and refill of meds and also for the Frontline supply.

The test, the year supply of Heartworm tablets, and 7 months worth of Frontline was about $225...and on top of that they told me that she is due for her yearly vaccines which need to be done each and every year.

I thought vaccines were only required during the dog's first year?

And does that sound a lot for medications?

The Heartworm was about $120 (one year) and the Frontline was about $75 for 7 months...and they said you need to test yearly for Heartworm even though she's on the meds..