Definately, the internal scan doubler makes the 3000 a worthy machine. Direct ability to use standard VGA monitors. If they had kept that in the A4000 it would have been a vast improvement. How many Amiga capable RGB monitors die each year? With the 3k you arent so concerned about that.
Add to that the ability to have two floppies and a hard drive, means it can be great for copying disks and hard drive installed games and programs.
If you get tired of that, Zorro III can mean a nice graphics card if you can find a ZIII card at a decent price.
I've been in the process of rebuilding a 3000 UX and love it.