@protoaddct I feel the same way at times. I bought into MTGO power and such online only to have a really crappy experience.
Legacy is an incredible format if you like playing powerful cards with insane diversity but not having to worry about Workshop, Power, or Bazaar. The format is still growing with it now being in the team events and I think it's still bringing out a ton more new decks with Miracles taking an arrow to the knee.
As for anyone who would not want to test against Dredge then they really aren't trying to better their game by skipping out on this. Dredge is a very explosive deck that you should ALWAYS be prepared for. My friend plays Omni Sneak and Show in legacy and the match-up so redundant and boring at times. I still play against him to help him better with his sequencing, my sequencing, and just a better understanding of the deck so I can learn when the time comes to beat it.
My recommendation is don't sell yet, take some time away play Legacy a little bit, see how that goes. Revisit vintage at a later time and see how it feels then. Buying back into power is a project, no reason on losing money by doing so.
@brass-man I appreciate this post a lot. This does shed some light on stuff to be aware of. Right now I am just hoping the Painter and Grindstone interaction works without any issues. Also, looking to build grixis delver. The main reason I am moving to MTGO is because of work. It leaves me little time to enjoy my hobby anymore(Adulting is FUN!Sarcasm off). I do like that most vintage friends I know are already on here and it allows me to play test more.