There seems to be a lot of people not understanding what the big deal about the Beatles on iTunes is about. Let me attempt to help you understand.
The Beatles are one of the few groups that cross generations with amazing success. While the older generations may already have every album and possibly every cd, the younger generations have few cds and get all of their music in mp3 form.
Let's consider a 15 year old that grew up listening to the Beatles on the radio in their parents car. Most teenagers today have iPods, not cd players. That 15 year old doesn't even have their own car stereo to play cds in. That 15 year old likely has a computer but uses iTunes to play their mp3 collection. That 15 year old may also only like certain songs and can afford a handful of their favorite songs but can't afford to go into a store (or onto Amazon) and buy all of the cds to get those songs.
Add in the fact that most young people get giftcards for iTunes as presents and not giftcards for music stores any longer. Plus the time required to rip all of the cds into your computer (a full length disc takes 3-5 minutes on my computer times 13 albums = about an hour of wasted time, maybe not a lot to you, but it's a lot to me and most people I know!)...it's a whole lot easier to pull up iTunes and hit "buy." Plus, the way we listen to music has changed. Most younger people do not listen to an album straight through...you listen to mixes or an artist on shuffle. You can't do that with cds!
Even for myself and my friends (late 20's)...we're all Beatles fans but none of us own all of the cds. Personally, I stopped purchasing cds (with the exception of my favorite artists that I collect their material) because it was such a waste. All I was doing was buying the cd, bringing it home to burn, and then the cd sat there, never being used again. I use iTunes on my computer, have my iPod wired into my car stereo, and have my iPhone with me for any other times I want to listen to music.
My PC using, non-iPod owning roommate put it perfectly the other day when she said that if Apple came out with a Beatles iPod preloaded with their music, she would run down to the nearest Apple store and wouldn't care if it costs $700...she'd be first in line to buy one.
Regarding the "shuffle" issue, the CD player in my car (2009 Chevy Malibu) has a "random" button that allows me to shuffle the songs on the CD if I want. Interestingly enough, I never use this feature and yet the CD player lacks a function that I wish it had: a constant display of the time of the current track. The only way it will display the time of the track is when you hit the fast-forward or rewind buttons.
As for CD's in general, I use them primarily as a backup of data at this point. When I buy something from the Amazon mp3 store or from iTunes, one of the first things I do with the album is burn it to a blank CD so that I can have a backup of it. My Macbook's hard drive crashed last year so I'm pretty paranoid about that.