alt Hacker News$4.8k for 48GB Max (what the parent said). Half of your quote.
Even a 128GB is $6.8k today. Still only 2/3 your quote.
Bandwidth is relevant (I have both a 5090 and an M4 Max 128GB Studio, so have direct comparison right here), but quote the cost appropriately!
You need the 128gb ram config to get the 614 GB/s bandwidth (which is $6999), you could skip out on upgrading the storage to save money but at that point I think most people upgrade the storage too at which point it's $8-10k + tax.