They have been going for 2k for the last few years, but as they become more difficult to find for sale, I suspect the price is starting to creep up now, some people paying around 2500 ped for them.
SHOOT! I might keep it! LOL The only way to acquire these apartments is by winning an event, these were never sold by Monria, and they also come with FREE space travel on the Yamato as long as you own it.