A mix for me, leaning heavily toward old school. Much of my stash was already collected. My mechanical will still be working 25 years from now.

I added multiples of several mods and RDA's I already owned what I knew I liked and extended the amt of coils I already had for the few different ones I occasionally use to extend the yrs I'd be stocked for. Made sure I had glass and repair kits for stuff I owned to keep what I have working longer if something should break.
Decided I needed to add an additional tank to my collection and after reading some reviews decided to try a Aromamizer v2 RDTA and fell in love so I bought several more along with extra glass and repair kits. Bought a couple new to me, REALLY cheap RDA's just for variety.

Gave in to peer preassure

and did buy one Kayfun v5 tank. Thought about it, but didn't buy a second since I really don't need it.
I like regulated mods although I didn't own a lot of them. So I tried a couple new ones, liked them and purchased seconds of a couple. Two mods came with tanks. I didn't care much for one of the tanks. I'll use it maybe, but didn't need a second or stuff to extend its life as when it dies no big deal. I did like the Mello 3 mini tank so I bought a second tank, glass, extra orings. Any never used mod or tank or RDA I only purchased one to see if I liked it before purchasing more of the same. Three months was plenty of time to be able to do that.
Buying for my grandson was a bit different then for myself. He's only vaped for abt 15 months. He prefers clouds that I don't require. He still likes trying new stuff and enjoys unique stuff, while I only rarely feel that need. He had a couple mechanicals and we added several more that I'm sure will last forever. His stash needed 100WT+ mods as that's his preference right now and needed variety so he'll have different stuff to try and stay vaping happy. He's welcome to use lots of my old school stuff but most just isn't what he will want to use long term. Added multiples of tanks he knows he likes along with extra glass and repair stuff and seconds of RDA's he knows he likes and extra orings and screws. Bought a few new tanks and RDA's to let him try and if he likes will get more of them in the next few months.