Bribery and corruption

We're playing Monopoly and Eloïse buys a street that I wanted.
"Eloïse can I buy Piccadilly off you?
- Nope.
- I'll give you Vine Street, plus M80.
- Nope.
- If you have Vine Street,... *ensues a lengthy exposé on the benefits of owning all three streets on the lot, building houses then hotels and collecting rent from unsuspecting tenants*
- Nope.
- I'll give you Vine Street, plus a Cadbury Rose.
- OK !"