I see your point saltynay, but I have to agree with Moochy on this. The average lfs really doesn't have that many fish suitable for a cold water set up; and for a 60l tank; there's really only white clouds or possibly some of the danios and sub-tropical livebearers, if it's in a well heated room. Adding a heater gives you a much better choice of what fish you can have; plus the stocking levels for coldwater are so much lower than for trops.