Once again. What do you own? Let's say you buy an ISP/CSA (or whatever Ex calls it at the moment due to what lawsuit their in). They own the customers, they own the boxes, they own your route. You only have trucks and a year to year contract. Soooooo, You pay 500,000.00 for an ISP. You make 10% a year. 10 years you've made your original investment back, if they haven't changed their business model or terminated you. 10 years you've only made back you investment. How do you get your original investment back? It's not an easy walk away business. You need to not put your own money into it unless you got gambling money laying around.
You own the trucks and nothing else except maybe uniforms if you paid for those.. You have temporary rights to deliver packages that fedex can withdraw unilaterally if they decide to alter their business model, or if they decide that you violated the contract. You have the right to arbitrate if they cancel your contract, but your damages are limited, probably only to potential profit for any time remaining until renewal time. If you 'profited' $5000 a month, that would be your damage limit for each remaining month. If you paid $100k for 'business' and only had 3 months remaining under your contract AND won at an arbitration hearing, you might recover $15k.
Buy a REAL asset instead.