The way GHX is laid out is that there can't be more GHX in circulation than backed by physical hardware. This means if hardware is taken offline to be either shipped for relocation, sold or send to a member who has redeemed GHX for the hardware, then the amount of shares matching that hashpower must be destroyed and new shares will be issued with fresh hashpower coming online.
The idea is to start a rotation of hardware by replacing hardware which has been either sold or redeemed while bringing in new batches of new hardware. However during the process of swapping hardware any excess GHX need to be destroyed.
For redeemed hardware it's not a problem since the owners will send their GHX when requesting the hardware. Soon as those redeemed units would go offline the GHX will be un-coloured so that the remaining GHX owners continue to receive their dividends according to the actual power hashing and their percentage of shares owned in the farm.
For units that are taken offline to get either re-located or sold GetHashing will have to acquire an equal amount of GHX and un-colour those shares while re-locating or liquidating those units, cycle the funds and then re-issue new shares with the next batch of new hardware coming online.
Some units might be mined until they go obsolete though since we can't guarantee selling hundreds of used miners within a short period of time nor have we done such a sale / hardware replacement yet and we're still a good two months away from cycling through batch 1. We (all of us) will have to asses their profitability and sustainability in approx 4-5 weeks from now to decide what we as GHX owners want to do with the batch 1 hardware.
Relocating a "portion" of the units has been discussed with a number of members and there is some interesting hosting solutions out there that need to be looked into a little more.