Defensive stoppers are usually signed by playoff teams.
What playoff team has a need for a stopper + will not be turned off by his lack of a jump shot + is able to pay Tony a considerable amount of money?
Eastern ConferenceI think you can rule the top teams in the East. Orlando, Cleveland and Atlanta won't sign a non-shooter. Neither will Miami. Doubtful Chicago would either. Charlotte has a lot of defenders already, so unlikely there too. Milwaukee? Doubt it.
Nobody is jumping off the page from the lower half of the East either. Phily can't handle another non-shooter. Indiana just signed a defensive stopper last off-season, don't see them signing another one. D'Antoni will want shooters and NY's cap space makes it unlikely they would sign TA to a non-minimum contract. Detroit's backcourt is already overcrowded. Toronto? Doubtful but not impossible. They want to upgrade their defense but they already have two shooting guards (Weems, DeRozan) who want and need to give minutes too + Colangelo likes shooters. Washington? Not seeing that either.
Western ConferenceThe Lakers might spend their MLE this summer if they fail to win the West. I think they'd be looking at a point guard though and they need a shooter to complement their bigs + Kobe. Tony Allen doesn't fit that requirement. Phoenix wouldn't sign a non-shooter. Denver has Afflalo and JR Smith. Portland is loaded on the wings. Oklahoma has Sefolosha and Harden. Houston has Martin, Ariza and Battier.
Dallas? Not likely but maybe. I expect they'll be looking for a full MLE signing, more of an impact player. Someone like Mike Miller. The Utah Jazz? Again, a team that desperately needs to upgrade their shooting and can't really afford another non-shooter especially with Okur's effectiveness declining rapidly. But maybe. Actually, no, Utah have too many financial pressures, that makes them very unlikely to sign a player like TA to a considerable contract.
Memphis have Gay, Mayo and Brewer. Then Sam Young. Perhaps if they lose Gay or Brewer through free agency. Their GM knows Tony Allen well.
New Orleans won't add a non-shooter to play alongside Chris Paul. Golden State are unlikely to be interested in a player like TA and have a lot of options at the two already (Monta, Morrow, Azubuike). Sacramento shouldn't sign a non-shooter with Tyreke there. Maybe Minnesota? Again, very unlikely. Clippers? They have cap space and are won't want to waste it on role players. But if they strike out? Still, hard to envision, but maybe.
SummaryYeah, I'm not seeing a whole lot of potential destinations out there for Tony Allen + without more suitors it's hard to see his price tag rising too far beyond where it currently is ($2.5 million).
I don't think Boston will be out-priced from re-signing Tony Allen.