Game saves + Downloaded games...3DS transfer to 3DS XL ??

I've decided to buy the 3DS XL next month since i've found a good deal, so i'll get rid of the 3DS. I have a bunch of physical games with progress in them, and a bunch of downloades ones too (3DS Ware, Classics). Don't want to loose anything obviously.

Now, i know Nintendo isn't friendly with this and i'm not sure about how it'll go for the 3DS/XL.
I mean with Wii, if you want to change console (model, color...whatever reason), you're downright f*****. You cannot transfer downloaded games. I guess you can switch games saves, but still, downloaded games kills it.
With Vita, you can technically switch systems and keep your memory card. Downloads can be redownloaded too. And the system can be backed up. Almost all good, except that you cannot precisely manage your saved date, which might be a problem. And the games that can ONLY save on the actual cart...Vita is mostly good except for these last 2 hiccups.
Then PS3 and 360. You can redownload anything. You can copy saves, physically or even digitally now. And backup/transfer data of hard drives. So these 2 makes a system switch a simple, problem free thing.

So, how about the 3DS? Can i buy a 3DS XL and keep all i have?
Game saves...do all physical 3DS games save on the game card and only there? Does it depend on the data type?
Can downloaded games be re-downloaded on the XL? Or do they have to be transfered with the memory card? Can they at all?
As for the unit itself, is there anything important that is stored in the system itself?

Thanks for any help!

you can/ have to transfer everything you have from one 3ds to the other, but as far as I know all digital saves (for digital games) are lost. Hard copy games are saved on the cart itself so you dont have to worry about that.

In one of the pre-release reviews they said they lost their saves on their downloaded games when they transfered systems. Who knows if that will still be the case on the actual release.

I thought all saves were put on an SD card. Can't you just take the card out and put it in the 3DS XL?

there is a transfer program only up to 5 transfers for user though , i m keeping my dl i already have on my small one and using my big one for 3ds games and ds retail ,

more easier and faster to get just to the game i used it once already on my red 3ds from my blue 3ds , yes ill have 3 come auguest 18 1 xl 2 reg ,

I thought all saves were put on an SD card. Can't you just take the card out and put it in the 3DS XL?

knives913