If talkin about my service:

You get more than you pay :)
You send 4.0000 EOS ...
... and I buy for you: 4096 RAM , and 1+1 EOS for NET/CPU = 4.0600 EOS

It's because RAM price for now ~ 0.51513465 EOS/KB

But I hope for people decency. Btw You can send more than 4 EOS if RAM price will be pump.

"data": {
            "payer": "nameregister",
            "receiver": USERNAME,
            "bytes": 4096
        }

---

"data": {
            "from": "nameregister",
            "receiver": USERNAME,
            "stake_net_quantity": "1.0000 EOS",
            "stake_cpu_quantity": "1.0000 EOS",
            "transfer": 1
        }