Why do I prefer R2R over Chip based DAC's?

I’m quite surprised nobody has mentioned the Denafrips dacs at this price point and for the post that says chipsets aren’t that good I have no problem with my Tad d1000

I can say, I didn't expect so many responses. I have learned so much from this community. Thank you all. 

You should try a Lampizator Baltic 4.

Another DAC that can sometimes be found used that is simply amazing to my ears, and to many on Agon and other forums - is an Okto Research DAC8 Stereo. Not at all sibilant, very natural, engaging, nuanced, expansive, dynamic, incredibly detailed. Many find as good or even better than many d/s or r2r dacs way up to even 5k. Having had both types, and can attest to that. Ultimately, it’s way more about the design and output stage than the chip type. Even though higher end r2r does lend noticeably more stage (in general).

I’ve experimented with seven topping/SMSL DACs in the low to mid-priced range so far. One critical aspect I’m missing from these Chinese chip-based DACs is the depth in soundstage. Despite having an expansive ’width,’ every DAC (even Topping D90 sounds flat (2D). However, I discovered this missing trait in the sound when auditioning the FPGA-based DAC, Chord Mojo. From various reviews, including those by iiwi (I assume you’ve considered his insights in making your choice), I’ve learned that some R2R DACs also exhibit excellent soundstage depth. If that is something you are craving for, you might want to consider exploring that option.