If you keep out sand, grit etc. then it will last a long time as the Ertalyte is a much harder material than Delrin.
A cube farm is a cruel invention by corporate management to enslave engineers in rows of partitioned 8' X 10' cells known as cubes or cubbies. Then about 1 million watts of florescent light is rained down upon the suffering masses to deaden their ability to resist the onslaught of 100+ emails a day. During the punishment, there will be numerous interruptions by other engineers to ensure no work actually gets done.