Alright so - I am extremely tempted to buy a bundle (university, vampires, and laundry day/tiny living if you're wondering) with some of the money I'm saving from lockdown (UK). However, I just asked ...
I have almost all packs so that probably tells you my asnwer. I enjoy TS4 a lot and can always find use for new stuff. The bundles are reasonably priced so I'd probably go for it. But if my budget was really tight I'd find a way to enjoy playing without those packs.