Ma Lu didn't hurry to overwrite the engraving effect of the first Meteorite Shard.
He planned to activate all the additional effects of the Purple Equipment as much as possible before considering compatibility.
This was also why Ma Lu spent all the Atonement Points he had at once.
Though there was Golden Equipment above Purple Equipment, which allowed one more engraving, its price was generally about 7 to 8 times higher than that of Purple Equipment, while the increase in strength was only 15%-30%.
It was not cost-effective and not something the current Ma Lu could afford.
Blue and White Equipment, which were cheaper, became obsolete too quickly to be worth engraving on due to their fast turnover rates.
In comparison, Purple Equipment offered the highest cost-performance ratio.