Why I play Runescape among all MMORPGs

Runescape has very interesting quests and I really enjoyed doing them, but combat is very obsolete and too much grind. If they reduce it or at least make it very rewarding experience, I won't play it again. Everything else is okay, huge world, good graphics (for a browser game), decend music (they still use midi instead of mp3 quality sounds but you get used to it), huge community, big economy etc.
The main reason i don't playi s that after hours of grinding like mining, makes you fill like a bot. Mine 30 coals run to bank and store them, then run back to mine etc.. You get like 120 xp per coal and you need like 10 mill xp for max? Calculate how many months you will be doing the same thing until you reach you goal. This game will melt your brain down. However, it is very addictive and thats dangerous mix! There are many different ways to earn runescape money so that you can challenge a lot. Even you don't want to make rs money by yourself, you can find many sites to buy cheap rs gold.

Personally, i'm more of a quester and i love the endgame-ish combat, like barrows and godwars dungeon. However i hate HAVING to grind boring skills to get there.

In most MMOs, like WoW, ever quest, basically all big box MMOs. You grind to max level and thats all you NEED for endgame, sure you could grind professions to max, and you're at a disadvantage if you dont, but no ones forceing you to do them. In runescape if you dont get all your skills to max, or at least rather high levels, you cant do have the stuff i enjoy.

Almost makes me wanna bot my way through them..

It is worthy to buy runescape account

I think, many players know Jagex allow players register a free runescape account on official website to explore in Runescape. Therefore, why many players still buy runescape accounts to join membership? Is it waste of money to buy runescape account?

Obviously, with the rapid popularity of Runescape, more and more players want to buy runescape account to join members of RS. There are more quests and more skills for members. Especially, combat as the most important skill in runescape, some abilities of Combat are not available for free players to train. If you want to complete more quests to gain fast XP, it is necessary to buy runescape account as neary half of quests are only available for players with paid runescape account. Like the Kalphite King, Kalphite King is the toughest and strongest monsters for players to defeat to get prestigious rewards included good armors, xp and gold, which is quite challenging and provides rich rewards once completing this quest. If players want to level up and get the full rewards, it is worthy to buy Runescape account to be members.