Yes I guess it is much better for the leagues and WIS to have a whole bunch of inactive leagues than to set up a system that might be gamed.
If you were to try and game the system like you said I could take the team you built the previous year. "lather rinse repeeee oh no.... someone stole your shampoo.
Ok making numbers up. Team vacant for 2 weeks 10% discount, 4 weeks 20%, 6 weeks 50% discount first year 20% the second. 8 weeks 75%, 50%, 25%, 10%. As always first come first served.
Bananas going bad lower the price. Display model scratched lower the price. Destroyed WIS team lower the price.