1/2 the cost to train in
1/2 the cost to hire
1/2 or more even to buy one
1/4 the cost to maintain "
Plus the landing fees are cheaper and they sip unleaded instead of guzzling £££Avgas.
Are you sure?.........................
Training and hire costs are not much different at all and in fact you can only fly solo in a hired microlight. A typical C150 will set you back around £15,000 and a comparable Ikarus/Eurostar will cost £30 - £35,000.
On the other hand I would say that you understate the maintenance savings I would go as far as to say that Permit maintenance is likely to be 1/20 of the the cost of maintaining a CofA aircraft - as for unleaded being cheaper than Avgas - oh yes - and by quite a bit.
Sorry to be pedantic - I am actually on your side !!