Only buy if you plan on living there for a long time. Everyone I know is currently sitting on a house that's worth less than what they bought it for if they bought after about 2002.
Correct that houses are worth less but, the lower prices probably go back before the 2000's and maybe the early 90's prices??
My house was appraised at 84K 2 weeks ago 🙁 and was around 135K in 2001.