Home values going up despite sales prices going down?

Tracking median sales prices can sometimes be deceiving....
- If older homes are selling this year (compared to last) then median sales prices might be dropping even if home values are going up.
- If smaller homes are selling this year (compared to last) then median sales prices might be dropping even if home values are going up.
- If more homes without garages are selling this year (compared to last) then median sales prices might be dropping even if home values are going up.