as for now it works good - only silver masternodes are activated - at block #15000 those silver masternodes will get gold masternodes rewards - at block #35000 all tiers will be active - still some time to grab some cheap pentas !

so you will have like 5 tiers

bronze - cost 2500 - reward 20 penta
silver - cost 5000 - reward 50 penta
gold - cost 10000 - reward 120 penta
platinum - cost 15000 - reward 200 penta
diamond - cost 25000 - reward 350 penta