They are the same, however the Strength Skill Cape is classed more of status and cheaps the Obsidian Cape, and when you earn you next skill cape, all skill capes will be Trimmed giving you a +4 Prayer Bonus, this is something Obsidian Cape doesn't have.
463,885exp
$15.00
the abyssal whip in runescape cost from about 1.39m- 1.6m somewhere around there... 1,390,00-1,600,00 the price can rise or drop of time.
7.50 USD
The skill cape costs 99,000 GP.
A skill cape costs 99k or 99,000 gold.
99k
They are the same, however the Strength Skill Cape is classed more of status and cheaps the Obsidian Cape, and when you earn you next skill cape, all skill capes will be Trimmed giving you a +4 Prayer Bonus, this is something Obsidian Cape doesn't have.
99,000 coins.
you will need a total off 7,842 exp in that skill.
You should have around 737,627 Exp by the time you are level 70 in a skill.
There are farming calculators out there, and depending on your level and what you will be using to level this skill up you can get the price of that item and times it by how many you require for this answer.
463,885exp
Pretty much the entire RuneScape population.
a cost
Well,it depends on...... jk i dont know dont ask!