Odhanan said:
Why do you like to play OD&D?
taking the warning into account. i'll stick to answering the first part of your two part question.
0) because it is fun
1) it is simple, but at the same time complex.
a. straight rules wise you just roll a dice to hit. a dice for damage. a dice for saves. and there are very few modifiers.
b. complexity wise you can add more modifiers. +1 to hit for str is the max you are gonna gain with the 3 booklets. toss in Supplement I Greyhawk and suddenly you have a bonus higher than +1 possible.
stats are based on a human or demihuman PC. that is what the game expects you to play. if you want to play as a player something else talk to your referee. work with him.
addition is always easier to learn than subtraction. add rules to up the comlexity not take them away.
2) it is mallable. i can run space aliens, nuclear fallout victims, lost time travelling cowboys, and wizards all in the same campaign.
3) dwarven wizards exist. they are called gnomes. gnomes are dwarves in OD&D. i had a dwarven paladin in the campaign. i have a half-faerie ranger in the campaign. think drow. i had a half-ogre Monk herbalist. i have a human psion cleric of Law.
4) three alignments. Lawful (civilized), Neutral (treehuggers), and Chaotic (there will always be more. destroying things is fun). No Good. No Evil. But yet they are there too.
5) the players are driving the campaign. i am the referee. i just make rulings on what they are doing. the rules are guidelines.
we are currently using 14 published adventures, 7 campaign settings, and 27 years of homebrewed notebooks.