A lot of obsessions fall under the category of OCD or Obsessive Compulsive Disorder.
borrower
thrifty
Greedy
call the police
He sees money as proof of success
Obsessed, perhaps..? Rich! Filthy Stinking Rich I tell ya!
meterologist
meterologist
A person who is obsessed with dates is called a "chronophile."
Lycanmaniac --------------------------------------------------------------------------------------------------------- Lycanophile??
Workohalic or social
an astro nut!
Party pooper?
skull collector
You !
vamp freaks
sociopath