Hey. I've been recently contemplating on getting an Ipad for a graphics tablet, as my laptop's colors aren't true to color and my art always looks super wonky on any other device that isn't my laptop. I know a bunch of people use Ipads, but I definitely cannot afford a new one. I'm debating on getting a G1-G4, preowned, as those seem to be in my budget, but I'm wondering if anyone has had experience with these and if it's even worth it? I'm worried about the lag and color accuracy mostly.