The mini-14 is certainly worth 4 times the AKs value in cash
Not anymore, alas...
http://www.gunbroker.com/Auction/ViewItem.asp?Item=118523231
http://www.gunbroker.com/Auction/ViewItem.asp?Item=116884542
That's a WASR for $565 and a mini-14 for $630. I don't think new ones sell for much more than that (Ruger's MSRP is much higher than your typical dealer price).
The AK is a simple cheap battle rifle made to function and fit the purpose for mindless, uneducated, 3rd world hopped up on whatever drug is most commonly available rebels.
No, it was made for the professional Soviet Army. Its reliability and ease of use later led to it being issued to Third World proxies, but that's not who what was made for.
Keep in mind that the mini-14 is not as accurate as an AR-15, but its not that bad either, equivalent to or better than any AK.
Not all of them. My mini-14 (188-series stainless Ranch Rifle) shot worse than my Romanian AK, which was the primary reason I sold the mini and kept the AK.
New-production mini's (580-series and up) are reported to be considerably more accurate than the older ones, and are comparable to the best AK's accuracy-wise. If I were in the market for a mini, I would
definitely look to get one of the new ones, rather than rolling the dice on an old one and not knowing if it will shoot 2" groups or 6" groups at 100 yards.
The mini-14 will shoot and shoot, and never stop
Only if you use grease, like you would with a Garand, rather than oil like Ruger recommends. Oil is fine until the rifle gets really hot, then the oil evaporates and the rifle seizes up.
I used Rem Oil for years on my mini until I noticed galling on several contact surfaces (with no failures, but I never got mine really hot), then switched to grease and had no issues after that. But the design is not very forgiving of lack of lubrication, though it may be somewhat better than an AR in that regard due to the high-energy gas system.
John Farnam reports mixed results with mini's in his classes, probably due to differences in how people lubricate them. If you get one, I'd highly recommend grease on the bolt contact surfaces and the trackway on the right side of the receiver that the bolt carrier handle runs in, and a non-volatile oil on the recoil spring (Militec or Mobil-1 or somesuch).