Termite Swarmers

I had hundreds of termite swarmers come into my house last weekend. I've had several companies come do inspections and give quotes, and they're all saying slightly different things and giving quotes for different treatments/services... Has anyone dealt with this? I really don't want to drop $1,500 on invasive foundation treatment, but I also don't want them to start a colony in my house. It's been 5 days, and I'm still finding the occasional live swarmer in the house.