Here's just a few suggestions:
"Whad'ya got?"
...or...
"My best price is $6.49, but then again I really admire $ 199.95 as well. I do like the numbers with a few commas too. What's yours?"
...or...
"My best price is going to be the one offer I accept. Since I haven't heard it yet, I don't know. Get back to me once I've sold it and I'll let you know."
Marco
"Whad'ya got?"
...or...
"My best price is $6.49, but then again I really admire $ 199.95 as well. I do like the numbers with a few commas too. What's yours?"
...or...
"My best price is going to be the one offer I accept. Since I haven't heard it yet, I don't know. Get back to me once I've sold it and I'll let you know."
Marco