As an initial player of sims that first began playing S2 at a friends house and then did not have the time to look at the game again until several years later when S3 series had started I simply bought every pack and all the store content when it was released as I could afford to and because I had never played another PC game before so had no comparison to any other PC game regards pricing/packs or how to judge if what I was paying for with Sims could be considered reasonable or a rip off lol I have not played the S4 series of the game as much as 3 (then 2) but it appears to me we got way more content with 3 as long as our PC specs were accommodating enough to be able to play with all that lovely content we were buying and after a frustrating first initial start with the S3 series after making sure my PC could accommodate this series/content I realized personally I wanted any and all content that was available for my game to add the depth of gameplay that I liked.
All that said I am not sure if we are paying anymore for our content with series 4 V content packs at the sims 3 store but as I personally consider the sims games (all of then since 1-4) one of my only personal/game loves/addictions I will continue to buy unless something goes very badly wrong with a series completely (as it nearly did with 4 in the beginning) because there appeared to me so much missing from previous game series but I have continued to purchase 4 because in the scheme of things my own personal enjoyment I get from all things sims (including 4) far outweighs what friends of mine would spend on other things so I consider what I spend on sims games peanuts compared to other things I could spend my money on for what I get in return so consider it a worthy personal expenditure so while I am not making excuses for what may be lacking in 4 compared to past iterations of the game the sims overall is my love of all things gaming so despite any personal preferences or complaints about the game I have I will continue to purchase because overall I love the sims games so much I will continue to play despite the differences/bugs between different series of the game because I cannot stop playing <3 :)