Unfortunately, I think this too. Maiga was our main target (for the last 6 months or so) and now that that's a no goer, can't see any of our other supposed targets being pursued by us. They would be simply too expensive as you've pointed out.
Ashley's seen that Ba is performing well, Best isn't doing too bad of a job either so will probably think it's pointless to sign a new striker. There's also that hint of "oh well, we really tried this time" thing going on I reckon.