The C128 is a lot more convenient to develop for. It has a built-in sprite editor and monitor in ROM, has really useful BASIC with graphics and sound commands instead of having to use obscure POKEs for everything (it's Microsoft BASIC 7.0 instead of the ancient BASIC v2 on the C64 -- Tramiel finally splurged for a renewed license). It's really a shame that more software did not take advantage of its capabilities.
