Who judges music based on lyrics? Goth kids and recluse English majors?
At best, they're something you hum along to while you listen to the instruments...
If you want to focus on lyrics, buy a Lou Reed album - you know, where he speaks and calls it singing.
Better yet, go read some poetry and forget about music entirely; nearly any artist will tell you the lyrics are an afterthought that they frantically make up to fit the music that was in their heads.
And even then, The Beatles lyrics are a lot better than some other very highly regarded bands of the era - The Doors, Captain Beefheart, The Rolling Stones - heck, even Bob Dylan's lyrics seem silly when taken out of context line by line.
PS - It's a great irony that the two songs you decided to highlight to prove The Beatles simplicity are some of the most beautifully arranged musical numbers of the decade - especially "You Never Give Me Your Money," which is almost like three wholly different songs melded together...
I love the Beatles, but Dylan's lyrics in general exceed anything the Beatles ever wrote. Some of the social commentaries he delivered through his songs are still relevant today, like "Blowin' In The Wind," "Masters of War" (ESPECIALLY this one!), "Like A Rolling Stone," "The Hurricane," "With God On Our Side," "The Times They Are A-Changin'," etc.
As for the Beatles on iTunes and other services, I will be glad when they're on Rhapsody for sure. Rhapsody streams are the same quality as iTunes and if you purchase from Rhapsody, you get 192 kbps downloads as well as 89 cent tracks ($8.99 albums) WITH NO TAX (my state actually taxes iTunes downloads...absolutely ridiculous!). Anyways, I'm glad they're finally coming to the digital world.
And with the off-topic nature of this thread, I'll continue going off-topic within my own post. All of you who are wondering about the highest sellers ever, it's not even close. U2 isn't even close. The person who said the Beatles have sold 166 million worldwide is wrong. They've sold 169 million in the U.S. alone, and that's according to the RIAA - an organization known for not updating their lists very often.
http://www.riaa.com/gp/bestsellers/topartists.asp
The next highest seller ever is Elvis Presley, followed by Garth Brooks (thanks to his Wal-Mart box set deal), and Led Zeppelin is 4th. Of the 4, Zeppelin impresses me the most because A) their music kicks total butt and B) they refused to go the mass promotion route like Brooks, Elvis, and the Beatles. But the Beatles are one of the most influential artists of the 20th Century for sure (more influential than Zeppelin, although I think Zeppelin's first 6 albums are better than the Beatles' great stretch of 6 from Rubber Soul through Abbey Road). It's very telling that Zeppelin has sold over 40 million MORE albums than the Rolling Stones (a band that runs around calling themselves the best on the planet). I love the Stones, but it's hilarious that a band with 1% of the promotion that the Stones used and received could sell that many more albums. It just gives you an indication of how great Zeppelin's catalog really was/is. Selling 110 million albums without hardly ever releasing singles is absolutely incredible. The Beatles couldn't have done it in my opinion. Pink Floyd was almost as impressive in this regard (not releasing singles but selling a ton of albums), although I get the feeling that Pink Floyd is sort of one of those bands that has sold a ton of records in the 80s, 90s, and 2000s (moreso than Zeppelin) with retrospective appreciation for how great they really were.
Another little thread within this thread was a question about other big name artists not on iTunes. Zeppelin is probably the 2nd biggest name not available and I'd put AC/DC 3rd. I know why Zeppelin hates downloads though. A lot of their stuff is intended to be listened to in album format. They don't like the whole cherry-picking nature of online music services. There's a reason they only released like 5 singles in their entire career vs. 100's upon 100's released by the likes of Elvis and the Beatles. One thing Zeppelin could do is put their stuff on these digital stores, but ONLY allow people to download the whole album. Just do "album only" on everything. I have no idea why AC/DC is against digital distribution. Most people would not want to listen to most of AC/DC's albums all the way through. They are a band very much based in singles.