i picked up 3/4 not so long ago for $6 each (about $30-40each in bunnings ), not sure why i purchased them other than the price
what temp do yours heat to, mine seem to get to about 35C, maybe slightly less with artificial turf ontop. I use a thermostat if using them as paranoid they may over heat....they are low wattage though so maybe safe. cheap to run.
Herperjosh i think beardies do feel bottom heat reasonably well just based on observation. Still if its too hot it will burn any lizard, thats why i dont like heat mats and or heat rocks as theyre known to get too hot, so any lizard could get a burn. need to be pretty darn hot though.
heat rock under basking light gets warm, so you effectively get heat from below and above, = double toasty