Also a fan of the Billecart-Salmon Rosé NV, although it is over the OP's price range.

Vueve Clicquot Yellow Label used be much more reliable 13-15 years ago, I think they've sacrifice quality for quantity to meet market demand.

If the OP is out side of the US, I'd suggest finding a Jacque Selosse NV, blanc de blanc or rosé.

Duetz is becoming more available in the US, the NV is very nice and in the right price range.

Just came across a new to me brand a couple week ends ago - A. Charbaut & Fils Cuvee de Reserve Brut - one of the best < $30 champagnes I've ever had. We picked up a few more bottles to try out, if they are as enjoyable as the bottle we've had already it may be our new house champagne.

Cheers,
Jeff