Having more RAM has been a quest for personal computer owners since I can remember. With folks speculating that the iPad 5 would have more RAM than previous models, and Anandtech's comments about a step backward in memory, it's not surprising that these questions are asked. In fact, it's a damn good question. The iPad 4 was a big upgrade from the iPad 3, and many iPad 3 owners were pissed.
There were Apple fan posters on this forum saying that it would be ridiculous to think that Apple wouldn't upgrade the RAM and base storage on the next iPad, and they were wrong. People were left wondering what the rMBP was doing with just 4GB of RAM on the base model, despite Apple's boosted (or whatever) RAM claims when needed. Some people questioned how Anandtech arrived at the conclusion that the new iPad only had 1GB of RAM! The diehard true believers.
Money doesn't grow on trees, and while rumors are cheap, iPads are not. I can afford to take a chance with the new iPad, but many people have saved their hard earned money in anticipation of the hyped iPad. They would like some assurance that rumors of a Pro iPad are not going to leave them with a second rate device 4 months from now, and who could blame them.
The only stupid question, is the one you didn't ask before buying. 😉
OP,
Based on Anandtech's review, it would seem safe to buy the iPad Air. While they did say it was a step backward in memory, they couldn't see a real world situation that would be negatively impacted. How it does two years from now is anyone's guess, but apps, games, etc, are not going to get smaller or less intense. Life is short, however, so..... 😉