I've yet to buy a single 150GM weapon
Was considering Hrunting for the longest time but then FO came out and I just use freebie Dirt Excalibur with it
Everything else is either "you need a decked out primal grid + very specific chars to make this weapon shine" or just too niche for me to care. I'll probably keep hoarding GMs until EoS at this point (and then spend them on sierotixes for chars like Visa Zoi and BD exclusives).