i think renting is best, due to the ability to upgrade to newer servers

and the cost of colocation is worse than the cost of dedicated servers

When you have many servers, let' say more than 10, 15, 20... boxes for example, I would go to colo, not renting anymore. We just moved to colo with our servers actually, and we are happy

im with rackshack im quite happy with them at the moment

if you are going to start hosting start with a reseller plan first then move up to your own server.