just thinking about this for a while and I guess my wife plays a big role here for me... she hates everything vape related so I tend to keep it simple, she hated it every time I got new juice bottles, so I started DIY (that's one big purchase and now she sees the same 3 bottles even though I use about 5ml a day and keep mixing every week and have a LOT of flavors!)
if it wasn't for her I think that I would definitely hoard a lot more DIFFERENT mods than I have (I want a brass nemesis, both caravelas, the origin etc...) but this made me realize that I really don't need them and I'm really happy with my modest collection.
the good part is that the wife just sees a stainless steel tube and a drip tip, she's a bit of mod blind, doesn't differentiates between them but don't want to push the envelope!