The morph is rarely of use, particularly as the only monster in the A cube with morph somewhat reducing the surprise factor
The open nature of its third-party marketplace means that there is some risk of unscrupulous sellers - especially if youre looking for rare cards - but youre likely to get a very good price on common cards and sets
The Main Three Technically, each of the upcoming Final Fantasy Secret Lair drops has a fixed Bonus Card
Plus, it has an additional effect, making it effectively a strictly better version
However, planeswalkers and Sagas do not have extended-art frames, therefore 5 of these new cards do not appear in this slot
Presuming of course the "better selection" you made was actually a misplay, but this is all very worst-case-scenario talk