Apple made a huge step backwards when they replaced the SE and SE/30 with the Classic and Classic II. The later machines were no where near as useful as the earlier ones and had a few weird quirks. By that time, the 8mhz 68000 was woefully outdated and a 68020 should have been the entry level with an even faster 030 in the up market model and they shouldn't have crippled how much RAM you could use or messed with the internal expansion.