JMS Big Bang Tespia Open For All (?)

I have played gMS since January 2007 so I would say I have quite a bit of experiance.

You can't sell stuff like stews effectively, without having store (atleast at the less populated worlds). You also need pet with item pouch if you don't want to spend ages looting those etcs. Biggest problem however is that even 100million is barely worth anything nowadays. NX funded user can get that profit with few gachapon tickets at Mushroom Shrine.
Also, this is only one event. There's not many events that can get you significant profit.

I agree 200%.