When it went out of production, it went up for those that are new condition or very close. The new model didn't change that.
In very good condition, for people like me who like the original better, an old model maybe went up. Depends on how many sell the old one to get a new one. If lots of them go for sale, they'll be cheaper.
For those who like the new one, it definitely went down.
FWIW, unless yours is NIB or LNIB, it probably went down.