dilanband.......I also moved from a Korg i3 & i30 to a Roland. The Roland to look at is the VA7 or VA76, either of these will replace your i30. In the UK the VA7 & VA76 are the same price. The VA76 does not have speakers but has some additional buttons and is better value. You also have a touch screen which is easier to use than the one on the i30. They have Style Editing, Sampling can be done into the Variphase. Zip Disk containing 400+ styles is very fast. The Dynamic Keyboard can be set to a different velocity for any of the 8 Arrangement parts Drms,Bass, AC1, AC2, AC3, AC4, AC5, AC6. The D-Beam is useful if used sparingly.
The VA76 appears not to be available in the USA but you may have it in Canada.
Graham UK