It's true - there are normally very few or no A2s on dealer forecourts these days.
The reason for this is two-fold. Firstly, yes, the dealers are a little reticent to have defunct models on their shiny display areas (notice the rarity of old style A3s, except 'hot' variants, the same will probably be seen next year with TTs).
Secondly, A2s are really sought after now and dealers normally shift any they get in within a week (I was told this by the SKF sales manager). Hence the lack of A2s on the forecourts.
Courtesy cars are now mainly A3 2.0 TDis, as these are effectively the replacement for the A2 in dealers eyes (ie low down the model range, cheap to run as a courtesy car and easy to shift on afterwards).
It's sad but true - in nine years or so, spares will be increasingly difficult to source and the A2 will start to become even rarer.
I agree Mike, the cars we all drive and love are a future classic and were too clever for most Audi drivers. We may well be looked down upon from other Audi owners (and dealers), but we know who has the superior car. True, it might not be as quick as a TT or A3, but it will outbrake them. It's also far cheaper to run, insure, easier to park, will never rust and can take massive loads in its Tardis-like interior.
Cheers,
Mike