me. from then on, it just took off. >> now, when you bought the property, how many square feet was this building at the time? not too big? >> 600 feet, maybe, something like that. >> so, over the years, and you expanded. >> i just kept buying up the property as it came available and then tore all the things down, which was all doctors' offices and stuff like that. i don't know if you remember that. >> this is old las vegas. you built this business your own as a young woman... >> yes. >> ...and built this up. you should be pretty proud of yourself. >> well, i'm not proud of myself, but i'm thankful that i've been given the ability to do what i have done. and not only that, i've worked very hard, and i enjoy every moment of it. >> you're a married man now, soldier. [ laughter ] >> up next, there's a thing called a 1031 exchange. it's a complicated concept of how you save taxes over a period