I think Radice, especially their Rind line, provides an incredible value for any smoker. Yes, they are more expensive than some factory made pipes but, for just a bit more you will get a hand made, expertly drilled high quality pipe which you will have for decades. To top it off, they have an uncoated bowl. I have lots of Castellos, love them but know that their price point is, well, overly exuberant. I think that Radice pipes are very close in quality at a fraction of the price. I very frequently reach for a Radice these days and leave the Castellos in the rack.
A radice estate is even cheaper, although you lose the pleasure of breaking it in.