Isn't it time to 'update' your pricing? Hell, most of us can find cheaper games/expansions at our local 'reputable' retailers (especially during sales). Solution is very simple: why don't you lower the price of games that are simply put - old, like The Sims 3 and it's expansions? A lot of us find it rather weird that The Sims 3 and The Sims 4 both are priced exactly the same! The Sims 4 Get Together preorder - 39,99 euroes, each one of TS3 expansions is also priced at 39,99 euroes. Dragon Age Origins, or first two Mass Effects (I have physical copies of all of the games mentioned).
I personally understand why people look for 'cheaper' means such as G2A, Pingu and whatever else websites that can offer a lot cheaper, 'ancient' games, eg. To follow you up on that, I've always been wondering why EA as a company doesn't update the prices of your games as they age up (well, okay, you do, but it takes several years after the game's release, unless the game was considered a flop, then you act immediately), or why don't you organize some huge sales of older games?