Living in BWI is very pricey. I grew up here, so never realised how expensive it is. I figure, doesn't everyone pay $350,000 for a 4 bedroom house in a cookie cutter neighborhood? West of the city, that is in Howard and Carroll counties, you will pay big money. Townhouses for 150 -200, single families no less than 250. NIce schools and 2500 sq feet, you are talking 300 +. Don't forget that is less then a 1/3 acre lot size typically. South west in Montgomrery and PG counties, forget it. Too close to DC, so the price is huge. East towards Annapolis, well watch where you go. Annapolis is great, but near the water, forget about it, but there are some rotten areas down that way. Schools in Anne Arundel county can be dicey. North towards Baltimore City and County same thing. Some very nice areas, but they come with big price tags, and watch the schools, the city is rough.
Downtown Baltimore has one of the highest murder rates in the counrty, like 300 + the last 6 years running. It has a huge heroin problem, and the highest rate of STD's and teen pregnancy in the counrty. The army sends its' trauma Doc's to intern here because it is so close to combat conditions, no lie.
I live out west in Carroll county and love it. We don't have any water, but the schools are good and most people are educated professionals. The neighvorhood next to mine just broke ground on 2 acre lots, with 2500 sq foot homes starting from the 480's.