I'll just (re-)state the obvious about how insane the market has jumped in the past 5 years or so, and share some stories about acquiring the now-multithousand dollar cards as a much younger me, solely for the purpose of annoying people and/or eliciting knowing chuckles and rueful shakes-of-the-head from those who can relate.
I started playing in '95 when a college buddy gave me a Revised starter. One of my rares was a Tundra, which I traded for my friend's Rod of Ruin (I mean, come on, I can play Plains and Islands in my deck without playing this "Tundra", whereas a Rod of Ruin actually does something). After becoming a little wiser in the ways of mana I slowly amassed a collection of good playable Eternal staples, buying Revised duals for around $7-$15 apiece until I had my playset. Fast forward a few years and I had my first real job as a SW Engineer, and I was throwing around all kinds of money on cardboard. A few of my more memorable purchases:
- Unlimited P9 for around $100 a pop (except Lotus at $300).
- Beta Pearl and Sapphire at around $150-$200 each.
- A playset of Bazaars for $12 per.
- Workshops between $40-$60.
- Beta duals at $25. This was right after duals rotated out of Extended, and they were considered almost worthless as they were no longer playable in any format that WotC actively supported.
Anyhoo, there's more but I won't irritate you any further with this. I personally love that there are high earners with disposable income to throw around on these cards, as I've slowly been selling off my collection as a means of supporting myself while I pursue self-employment. I'm resigned to the likelihood that I'll never play another game of Vintage again; being able to use my Lotus as a downpayment on a house eases the pain considerably. I'll hold onto my Legacy cards (the only eternal format in my area that anyone seems to play) as long as I can but will probably end up selling them too.
Just the ramblings of an old MtG geezer.
Looting is different from Brainstorming and doing it at instant speed is a very real difference to the game - consider Snapcaster Mage.
Agreed, looting is different from brainstorming; usually looting is inferior, unless you have some graveyard tricks, because you (often) see fewer cards and don't get card advantage. I think the lack of card advantage is the most important difference, one which is crucial for blue decks.
Phasing a creature out at instant speed allows for interesting combat tricks
Usually not relevant in a vintage blue deck, unless things have changed drastically since I last played.
While JTMS has a game winning ultimate, I have fought against it and won a few times. Taking 3 turns back to back will usually end a game of Vintage.
It sounds like you're presenting an exceptional case (wining versus the Jace ultimate) as a reason against it. The Jace ultimate will usually end a game of Vintage, too. Taking 2 extra turns requires other stuff to win with it. Admittedly, you probably will win if you get to this point, so the difference in value here isn't as great as the other points.
I think I like Teferi over JTMS in the current Vintage meta but that may just be my opinion.
By all means test it out and let us know!
I don't want to rain on anyone's parade, but JTMS seems superior in almost every way.
Brainstorm each turn > Loot twice each turn
Bounce a creature > Phase out a creature
Game-winning ultimate > Take 2 turns
Yes, there are some subtleties that I'm ignoring here, but the new Teferi is pretty much strictly worse.
I haven't liked BSC for a long time now, though I don't get much of a chance to play Vintage nowadays, so what do I know. The thing is, he's vulnerable to Dack Fayden, JTMS, and now Oko, three big planeswalkers that other blue decks could reasonably be playing. Not to mention STP.
I've always had good success eschewing Tinker entirely; my playstyle tends more towards hard control. Conversely, I can remember several times my opponent had Vault or Key in play, which I was able to ignore entirely because it did absolutely nothing on its own. But maybe this is just me.
Anyways, a suggestion you could try.