At my Tysons salon, which I consider pricey, but certainly not the priciest in the DMV, it is about $350 for partial highlights and a cut before tip. YMMV with balyage instead, but while $410 is expensive for hair, it certainly isn't shocking for the DMV and is in line with relatively upscale salon prices. If you want to get significantly below that, you will probably need to go the Hair Cuttery route (which works if you can find someone you trust, but I wouldn't walk in off the street for color there).

$600 before tip

How much are you currently paying for haircut and balyage? I was quoted $410 and don't know if this is reasonable.