Your info says you're in Rockville, MD. Zillow.com says the median home price there is $426,000 (meaning that half the homes cost more, half cost less than that). Even if you have a home to sell, and you're just moving from one $400,000 house to another $400,000 house, the costs of moving can be roughly estimated like this:
Realtor commissions: 7% ($400,000 x 0.07 = $28,000)
Legal/title fees: $3,000
Mortgage origination fees: $3,000
Inspections: $500
Movers: $2,000
That's more than $35,000 to move to a same-price house in your area. That's 4 years of in state tuition at the University of Maryland and more than 2 Toyota Corrollas.