The Origin (EA) store has a select number of games available for real cheap and under $20 bucks. Included in these games are some of the Sims 2 games, with Seasons being a cheap $9.00! Sims 2 Double Deluxe for $19.99 & University 3-pack Collection for $19.95! There are plenty more Sims 2 games available for cheap as well.
Some sales apply for digital download versions only, but maybe there are a few games you’d like to grab?