I usually don't answer these kind of threads because economical decisions should not be made on account of others, and I feel bad about saying that someone should buy something, just because I enjoy it and decided to spend money on it. It really is and should be a subjective choice.
The crashing though have been fixed I would think, and the game pack has so much to speak for it.
The question whether something is worth something is harder to answer. I don’t think EA games actually are worth the price they sell for.
I buy sims anyway, for different reasons, but the sum is very high considering what the packs add of gameplay, and issues; so if I instead can say that I am certainly enjoying myself with the features of the pack, that would feel like a more accurate phrasing.
Some of the packs I have bought when they came out, for full price, and some only when the price is cut low. SE I bought the first day, and I have not regretted installing it.