I paid 60 bucks each for a lot of those games. That was all 5-10 years ago though.
Great games, but they are dated. The multiplayer community is basically dead for all those games too.
Ghost Recon and R6 are both top quality franchises. I never cared for splinter cell, too sneaky for me. Still really well done though.
In the end, if you think you will play through them go for it.
I got the gothic bundle a while ago, 5 games for 12 dollars. Ended up never beating any of them although I did get 15 hours into 4 before quitting. Point is quantity =! quality.