Mrguy, don't worry. For me it's also impossible to buy everything. So I just collect it slowly and I prefer to buy their newer stuff because they play it live too nowadays.
I have Deadwing, In Absentia, FOABP, The Incident, DVD Arriving somewhere and now I will buy DVD Aneshtetize. I would like to buy also Insurgentes and Stupid dream. It seems they don't have Lightbulb sun, what a pity. So maybe till the end of my life I will have all discography
They will play in CZ only for 75 minutes
But yes, it is only open air festival. At least something. I feel like small kid before Christmas, haha.