When the A600 was new it wasn't a very good machine. It was my first and I bought it with a massive 40MB harddrive but after upgrading it with 2MB chip I was pritty stuck. Sure there where PCMCIA fastmem you could expand with but it was very expencive.
Many years later we got drivers for PCMCIA NIC and CF. We got clockport for further expansion with sound and/or USB, with A603 and later we also have scandoubler possibilities with the IndivisionECS and lets not forget that after ACA630 there have been a wave of CPU and FastMem solutions in it's wake to fill the void after dead Apolloboards. So today it's a realy nifty little machine and certainly doesn't deserv the branding it once received due to lack of expandability.