Willing to pay real money to buy potion that restores rested bonus to max.

[SenorPatty]

Alternatively, you can also pay 18$ to transfer to a preferred world, buy also the collector's stuff to get the exp earrings and ring and level insanely fast.

[worldofneil]

Alternatively, you can also pay 18$ to transfer to a preferred world

Assuming you're talking about "Road to 70" that only works for new characters created on a preferred (or new) world. You can't get it with an existing character.

[TheMightyMollusk]

Alternatively, you can also pay 18$ to transfer to a preferred world, buy also the collector's stuff to get the exp earrings and ring and level insanely fast.

The earrings came from preorders, not from Collector's Editions. You can't get those anymore, at least until 6.0 preorders come around and include a new set.