3) How many games require/need an analog joystick for games?
Not many games force you to use analog..i mean baseball games requires analog but ya really wanna play baseball with arcade stick..pretty much useless.
Other that that..EVERY game I can think of uses digital(thats are supposed to be played with an arcade stick).
I'd have to partially disagree here, about half the games need analog.
If it was an arcade port, then you won't need an analog stick (unless the arcade had an analog input, of course ;P ). Example: Soul Calibur doesn't need an analog.
However,
If it was a platfrom game, you problaby will need analog. Sonic Adventures 1 & 2, Ecco the Dolphin, & Toy Commander, for example, need the analog stick.
If it was a sports games, 50-50 you need analog. Sega Sports NHL and NFL need analog, while Virtua Tennis does not.
All driving games should need an analog input (the steering wheel).
So it really depends which games you want to play.
Quick rule of thumb: if the game has the "Arcade Stick" compatable icon, no need for analog; if it doesn't have that icon, either you need analog or it should have that icon.