The .22LR rounds have IN GENERAL not gone up by the same trajectory as many other calibers. They are not cheap by any means, but there is still some value that can be found. It is probably going to be an exercise in discouragement to compare the prices to even a few years ago, and one person's cheap is another person's not cheap, and since there is so much variation in both quality and performance, it is hard to get a consistent answer across the board.
For me, I took advantage of a Cabela's sale last year on a 525 pack of Remington Golden bullets .22LR - I know they are fairly junky, but less so than my old Thunderbolts - got the box for $34.99 each at this time last year. For plinking, CCI Standard Velocities are decent and some retailers are still selling them for a reasonable price (compared to everywhere else). Mini Mags are always good but they are out of stock at most places. I did manage to pickup a 9 boxes of them yesterday from a private sale from someone who sold his .22s and I got a wicked deal on the ammo. Then if you want to get decent stuff, you are looking at SK/Eley (both of which have a huge variation between their "entry" line and their premium lines.
For anything else, I have found retail prices to really be beyond what I am comfortable in paying and right now I scour private ads here and elsewhere for ammo that is reasonably priced. I have bought a number of bricks and boxes of stuff off people who have just decided to sell off their guns and move on, and typically they have the ammo for very reasonable prices. I think retail, it's going to be a slog - lots of brands/makes/lines are out of stock...for someone just getting into target shooting or hunting, the current prices would likely incur sticker shock.
I remember in 2008, buying a box of 100 rounds of Winchester white box 9mm 115gr, it was $8.95 at LeBaron. For 100 rounds. I just saw last month or so at Tenda (which generally have decent prices overall, all things considered) was selling 9mm boxes of 50 FMJ for $36.99. WWB are like bottom feeder rounds. I got double the amount for 75% less of the price less than 15 years ago. But we will never see those prices again, so for those who are looking for ammo, shop around, compare prices and based on your needs and budget, buy what fits your wallet and your interests.