ALL OF THE Sims 3 EXPANSIONS PACKS ARE NOW 80% OFF ON STEAM!!

So, speaking of sales, the entire Sims 3 Collection is now -65% off and costs 133€. The thing is, I have absolutely zero interest in about 1/3 of the EPs and maybe 1/2 of the SPs. I have never bought a game on Steam before. Should I wait for a better sale for individual packs or just grab the entire thing now? I'll pay less now than the prices of the packs I actually want combined, but I wouldn't mind a lower price at the cost of missing out on some unwanted packs. Any advice?
(I'm a "new" member so I cannot post any discussions of my own yet, and that's why I'm asking here. If it's inappropriate to post here, please delete my comment!)