Long post ahead. Three days ago, I bought a 13 i5 Macbook Air. While I know that apparently Safari 5.1 has a memory leak, its still raised concerns that 4 GB wont be enough. It sounds ridiculous because the only application open 24/7 is Safari. iTunes, Word, and Text Edit are literally the only other programs I use on a regular basis. Quick Time, VLC player, and Preview occasionally, but nothing else. Its usually Safari and one other program open, maybe two. I can easily have 5 windows open with 30+ plus tabs in Safari without even thinking about it. Most of the tabs are text, some with a few graphics, but generally not Flash. YouTube is rare, too. I do not play games. The Air replaced a 2006 Core Duo Macbook that has 2 GB of RAM (it runs Leopard). (It still works very well for what I need 95% of the time, but I had the desire and money to upgrade, so I did.) I push that constantly. I monitor the RAM usage in Activity Monitor always and have to force myself to limit the tabs I have in Safari. Sometimes, I have to quit Safari just to open Word. Its annoying. I do not like FireFox and have never used Chrome. Unless Chrome is much better than Safari at RAM management and I can somehow transfer my 1,200+ bookmarks, I have no desire to use another browser. I thought 4 GB in my Air would be wonderful. So far, it hasnt been. Almost a gig of RAM is wired (900 MB+, compared to ~400 MB on my MB), so that automatically drops the usable RAM down to 3 gigs. Add in Safari and Word (I have Word 04 on my MB I assume Word 11 (which I will buy when I decide if Im keeping my Air) uses more RAM?), and Im already down to next to nothing in my Air, just like my MB. Maybe this is just a distorted perspective (so correct me if Im wrong), but from usage, it seems like the 2 GB RAM in my 06 Macbook is pretty much the same as 4 GB in my new Air. And I thought Inactive RAM was supposed to be reallocated when Free RAM ran out and RAM was needed; this never happens - I could have half a gig in Inactive RAM and start paging. The only way I can get the Inactive RAM back is by rebooting. Is there something Im doing wrong that my computer is using so much memory with these programs? Am I not realizing that computers use a lot of RAM these days? Am I being greedy? I know Safari is a memory hog, but this is ridiculous. I dont want to worry about running out of RAM every time I hit command-T. Is this some Lion/processor issue? I don't want oodles of RAM free, but .5 GB Free at my normal usage isn't too much to ask, is it? I rebooted to post this thread, and the Air was automatically using 1.20 GB of RAM with no applications open. Is this normal, given the hardware and how much RAM I have? Also, Ive lurked quite a bit on MacRumors, and the general consensus seems to be that page outs/swapping = BAD BAD BAD. With the SSD in the Air, swapping wont be as slow as in a HDD, but is paging out on a regular basis actually bad for the SSD itself? Id like to keep the Air for around 4 years. How bad is regular swapping going to be on the drive in those 4 years - negligible enough to not worry about it, or something to concern myself with? The Macbook Pro doesnt appeal to me in its current state for various reasons, so if within the 2 week return period, I find that 4 GB RAM in the Air does not cut it, I will be forced to wait for the MBP and/or Air updates in 2012. And that will make me a sad panda. Any insights will be greatly appreciated, though it might take me a bit to respond as I'm posting this on my lunch break.