Maintenance revenue Maintenance and spare parts revenues might be ok, but from a sales point of view it may not be as good.
Might be the reason for so little systems sold. First, high cost of such new systems, then huge energy consumption and the cost of maintaining it, parts and labour. In this case, $1M on a $5M system, after just a few years
with all the past years R&D offerings and so little demand, either it's not as good as we're told or simply not economically feasible