A Debby is a BE35. No difference.
BE33 = Bonanza, the classic V tail
BE35 = originally the Debonair, straight tail Bo.
Got that backwards. Model 35 (1947-82) is the V-tail, Model 33 (1960-96) is the short-body straight-tail. Model 36 (1968-present) is the long-body straight-tail, still in production.
Ended up with the Bonanza name at some point, I believe in the early '70s, and eventually outlasting the BE33 VTail. The F35 was the last in the 4-seater Bonanza series IIRC.
The question is, why is a similar year Deb cheaper than a similar year and equipped 35?
The Model 33 Debonair was introduced in 1960 as an "economy" version of the Bonanza, intended to compete with the Comanche. The M35 Bonanza that year had 250 hp; the Model 33 Debonair had 225 hp., no cowl flaps, and only one landing/taxi light. The Deb had a much more spartan interior and shorter standard equipment list. Full paint job was an option that first year, and the third side window didn't become standard until the '68 E33 and E33A. Until the early '70s the Model 33's lacked the 35's standard openable (emergency-exit) side windows.
As time went on Debs offered more and more "Bonanza" features until 1968, when the 33s (225 hp E33 and 285 hp E33A) were re-named "Bonanza". But there were still differences aside from the tails.
Finally in 1972 the 225-hp model (then called F33) was discontinued, and the 285-hp F33A became virtually identical to the then-current V-tail V35B - except for the tail. Advertised performance numbers were the same; the F33A's empty weight was 19 pounds more than a similarly-equipped V35B, but it offered a greater CG range.
The V35B was discontinued in 1982; the F33A remained in production until 1996.
So if you compare a Bonanza and a Debonair from the same year of the 1960's, the Bonanza will often be worth more -- higher horsepower, more features. But from the early '70s onward, you might find an F33A to cost more than a contemporary V35B. To some the "stigma" of the V tail makes the F33A preferable, and as I said, the F33A offers a little more flexibility in loading. Otherwise, it's just a matter of what kind of shadow you cast on a sunny day.
True, 33's and 35's are often so heavily modified over the years that any differences from the factory are mitigated.
