I've a Glucomen Lx Plus and it does test ketones. The customer support from Menarini the supplier is first class ... I wanted to test the calibration of my meter, emailed them and had a vial of solution arrive in the post free of charge two days later.
I'm lucky in that I get my consumables - lancets and test strips on prescription so can't comment on costs.
I have had to change over to the Freestyle Neo, as it was difficult to get hold of the ketone testing strips. I had an order for 10 on backorder for just over two months before my DSN swapped me over.
i think it has something to do with it being a new machine and the supplier can not keep up with initial demand as the NHS has made it one of the prefered meters.