The simple fact that there are people like me which sometimes has the need to play a game of 7 years ago with that crappy graphic says anything in my opinion.
CIV4 is the best game i have played in the last 4-5 years and this sequel is a lot better than what CIV3 was but it is not comparable to the greatness of SMAC.
First of all SMAC has 7 years today but it has a lot of features which a game like CIV4 hasn't.
-In SMAC you had only 7 factions while in CIV4 you have 18 civs but SMAC factions and leaders had a lot more personality than in CIV4.Montezuma can be a big bastard but i will never hate him like i hated Sister Miriam, I have never felt again the same joy when i burned all the cities of the believers.
Morgan,Pravin Lal,Sister Miriam,Colonel Santiago,Lady Deirdre,President Yang,Provost Zakharov have no comparison to Alexander,Montezuma,Julius Caesar and so on
-UN is not as good as Security council in SMAC.You could also bribe other civs to vote for what you wanted
-Mindworms were a serious danger also in later stages and frankly were more funny tha those barbs.In SMAC you could also capture these worms and use them as weapon
-Espionage was a lot better in SMAC than in any other CIV game
-SMAC was less politically correct than all civ game so you could use agents to do a genetic terrorist act,you could use nerve gas,kill scientist,try to create a war between civs things which are not in Civ4 and frankly all this features were really great
-vassal state was already implemented in SMAC while we had o wait for an expansion now
-wonders video of CIV4 are not comparable to that of SMAC whcih are the best i have seen in any game
-tech tree was longer
- Ascent to transcendence was really funny
-unit workshop is better than premade units but perhaps it's just my opinion
-the immersivity in SMAC was greater, there were some piece of narration in game, diplomacy view was really good with photos of leaders, and photos of HQ, some videos were narrated, and for every tech there was a good description,all the factions had a different architecture
-Atom Bombs were really atom bombs
Civ4 has a lot of new features like religion,maiteinance cost instead of corruption,GP,UU and a better graphic but to be honest we are speaking about 2 games which have 6 years of difference i could play SMAC if my memory deserve on my pentium 100mhz while today i,m playing with an AMD 3500 and except for graphic i haven,t seen so much new features which improve so much gameplay in comparison to SMAC.
Summarizing CIV4 is a great game probably the best game in the last years but if CIV4 is great SMAC is the greatest and was probably too much advanced for its time, if the high levels of SMAC were maintained today CIV4 should hav instead of 18 civs 50 civs with tons of units, tons of gameplay concepts.
Do you really think that CIV4 is so revolutionary like SMAC was for its time and you will be playing CIV4 in 2013?I'm sure you will not