So, if you are on 10.2B, what is the arithmetic that is leading to your $250/user charge. From the Policy Guide:
"4.8 Platform Change
Certain products are available on multiple platforms. For these product offerings, licensee may change from the originally licensed platform to another available platform if the license is covered under Customer Support. The License Equivalency policy applies for platform changes. Licensees may request the new media required to install the OpenEdge product on the new platform. Use of the original license must be discontinued within forty-five (45) days of receipt of the new license. Licensees with licenses that are not covered under Customer Support may either pay a maintenance reinstatement fee (Refer to Section 5 for details) and take advantage of the License Equivalency policy or purchase the new license at list price."
and
"License Equivalency: Licensees that maintain their licenses under Customer Support receive the right to change certain license attributes without incurring any additional license fees, subject to the conditions outlined below. The License Equivalency policy typically applies when a licensee migrates to an equivalent license and no substantive changes are made to the license rights granted to a licensee. Shipping, handling, taxes, media, and import duty charges may apply."
So, there is no charge to just change platforms. Now if "we are still about 50 licenses above that" means that you are underlicensed currently and the platform change is triggering a catch up to fully license, e.g., going from 150 to 200 users, then I can see the cost of the additional users coming out with a number like this ... but that is not a product of some restrictive platform change policy.