Blind Steal? (hypothetical)

[scotty34]

It is folded to you on the button with a hand in the lower end of your blind stealing range, say Q9o or 67s for example. Both blinds are very loose and will probably defend with about 80-90% of their hands.

It's been drilled into me to basically never open-limp in SH play, especially on the button. I really don't know if I can see much added value in a raise in this situation however. You are building a big pot with a marginal hand that has little or no showdown value UI. You have pretty well no folding equity from the blinds. If checked to on the flop, you have a much better chance of picking up the pot when you bet. If they bet into you and you missed the flop, it is very easy to get away from your hand.

Is a call here really that bad? Discuss the merits of both options (or folding).