I remember I posted
this ages ago which is a similar idea. I like the secret choice, that's how I'd do it now. I do think there's a good card or two to be made with this kind of start of game choice...
There were a few problems that I came across when thinking about those cards and I do think this runs into a few. One was that if you have the modes have wildly different functions then the decision of which to choose becomes interesting less often, as it starts to become obvious what effect the kingdom is missing - I think this falls into that problem. There will certainly be games where the decision is non-trivial but I feel like at least half the time it'll be pretty obvious what the best token is.
Another problem with this is that once you've made the decision the card is very bland, either Village, Market Square with no reaction or Poacher with no downside. We've all played many games featuring these cards before so it just isn't very exciting.
It can also be hard to balance this kind of thing, you need the options to all be roughly the same power so they all work at the same cost. This kind of fails there, 2 of the options are "strictly worse" versions of existing cards and the other is "strictly better" than an existing card.
I think Asper's suggestion of changing it to +2 cards discard 2 cards is a good idea as it does fix a few of these problems, although that with the +$1 token seems like quite a formidable opening buy so maybe that's no good either? Honestly it seems clear that on a cantrip +$1 is just more valuable than the other 2 options, like Market vs Bazaar vs activated Conspirator.