  We have proposed previously that Sgr A* is simply a scaled down AGN with a
black hole, an accretion disk and a radio jet operating at a very low power. It
appears as if M81* - the nuclear source in the nearby galaxy M81 - is an ideal
laboratory to study a Sgr A*-like source at a higher power level. The jet/disk
model can explain M81* in great detail with no basic changes in the model
parameters other than the accretion rate. Radio cores in other LINERs may be
explained by the same model and they appear to be low-power counterparts to
radio-loud quasar cores. For Sgr A*, models without a supermassive black hole
are facing difficulties - some of which are discussed here, but a persistent
puzzle in any scenario are the non-detections and low flux limits for Sgr A*
from IR to x-rays. Especially the IR limits are a threat to accretion models. I
discuss whether a thin molecular disk (as seen in NGC 4258) around Sgr A* could
intercept infalling material before it reaches the black hole.
