Should I get an original ASUS transformer, and what's your oppinions on the device?

I owned a kindle fire rooted it to ICS, and it was OK, but I wanted a larger screen for most things, and I'm a pretty big ASUS fan, so I was considering a original TF101. I sold my kindle fire so I can get a larger tablet, and since I can get a TF101 and it's keyboard dock for the price of a TF300, what do you guys think? I know, processor, but I really only care about real world performance, I use an Xperia Play(S2) and a Samsung Focus (WP S2), so i'm used to slower performance devices. I was also considering a Vivo Tab RT, but I think that might be out of my price range. If anybody has an original transformer, is it heavy, and does it lag a lot on ICS, or on a JB custom rom? Do you think I should save the extra 100 bucks for the TF300? Is there any other 10 inch tablets that are cheap that you would recommend, as I would prefer ASUS, but i'm ok with other OEM's.