It's a pretty cheap investment over time, honestly. Most sites have a few skins they use, and a few have just one skin.
In the long run - when you buy the skin one time, and end up paying $10.00 a year for the upgrades from year 2 onward, its an outstanding value.
Even if you own five of these outstanding looking IB Theme Skins, the cost per upgrade from year two onward is like 3 cents a day per skin. I dunno where your gonna get better skins at such a decent price. Add in the fact that most Invision Community skins here at IB Theme are mainly problem free.
I think it's a no brainer. It motivates them to make better skins in the future. Plus IB Theme run great specials from time to time. Gotta ❤️ it.