Biggest advantage with Dawn - since most vendors have jumped on the bandwagon I am not tempted to buy anything.  I have nothing against a new model, just too much investment in getting V4 to work well, not willing to start over.

Lotus 123 ~ S-Render ~ OS/2 WARP ~ IBM 8088 / 4.77 Mhz ~ Hercules Ultima graphics, Hitachi 10 MB HDD, 64K RAM, 12 in diagonal CRT Monitor (16 colors / 60 Hz refresh rate), 240 Watt PS, Dual 1.44 MB Floppies, 2 button mouse input device.  Beige horizontal case.  I don't display my unit.