Long time no chat!
Lets get to the meat of it because I think you pose an important question.
The majority of digital users here either have excess real cash (cash beyond what they need to survive) or they have a cash problem (they dont make enough to spend their savings on things like steem).
People who are strapped for real cash but spend their time here earning tokens could probably benefit from a 2nd job making minimum wage. People can't make $10hr/here, therefore it is not a sustainable way to make money.... if you were to consider the US as the main user base that is.
People who are strapped for cash AND in other countries where their exchange rate to USD is horrendous can be assumed to reliably extract money from this system every chance they get.
Only people who have excess capital to "invest" in this type of platform will ever put money in this platform. But investors are more often then not, inactive participants. They have money, and they want someone else to use it to make money for them (which is the main power of having capital).
For all of the above reasons, everyone will have a different answer because everyone's position is uniquely different.
BUT!!!!
If this ecosystem is any bit of a capitalistic society, you would see high SP accounts find ways to generate more SP. The moment that delegations were a thing, vote bots also became the primary way SP holders made more SP. If that no longer benefits high SP accounts, then why should anyone hold SP?
If i had 100K of SP, I honestly wouldn't even know how to use it. Yes I could delegate it to a project, but I dont find most projects interesting. Neither do I find them practical.
My answer? My SP does not control my life, therefore I would keep it powered up until someone has a great idea. Once that great idea comes around, Ill throw all my SP at it to support their idea.
Right now, that project is Steemit Inc, and im holding SP to bet that they create a solid block chain (the steem block chain) that can be leveraged by someone else to solve some crazy problem that I dont even know exists.