GOG will be delisting a handful of older EA titles, on Monday June 28th, they are currently deeply discounted ($1.50 each) before they get removed. Syndicate Wars in particular might be worth picking up as it's not available for sale any place, while at least the other two are on EA's own Origin store front. They will remain in your library if you've purchased them:
Ultimate Underworld 1+2
Now why would I buy Syndicate Wars again? I bought and beat it on the greatest hardware ever made, the Playstation, back 20 years...oh.