The bus is obviously the cheaper option, and travelling up from Buenos Aires the trip is a full 20 hours, although the buses are very comfortable with spacious reclining seats.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	_
2	bus	bus	NOUN	NN	Number=Sing	7	nsubj	7:nsubj	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	7:cop	_
4	obviously	obviously	ADV	RB	_	7	advmod	7:advmod	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	7:det	_
6	cheaper	cheap	ADJ	JJR	Degree=Cmp	7	amod	7:amod	_
7	option	option	NOUN	NN	Number=Sing	0	root	0:root	SpaceAfter=No
8	,	,	PUNCT	,	_	21	punct	21:punct	_
9	and	and	CCONJ	CC	_	21	cc	21:cc	_
10	travelling	travel	VERB	VBG	VerbForm=Ger	21	advcl	21:advcl	_
11	up	up	ADV	RB	_	10	advmod	10:advmod	_
12	from	from	ADP	IN	_	14	case	14:case	_
13	Buenos	Buenos	PROPN	NNP	Number=Sing	14	compound	14:compound	_
14	Aires	Aires	PROPN	NNP	Number=Sing	10	obl	10:obl:from	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	16:det	_
16	trip	trip	NOUN	NN	Number=Sing	21	nsubj	21:nsubj	_
17	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	21	cop	21:cop	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	21:det	_
19	full	full	ADJ	JJ	Degree=Pos	21	amod	21:amod	_
20	20	20	NUM	CD	NumForm=Digit|NumType=Card	21	nummod	21:nummod	_
21	hours	hour	NOUN	NNS	Number=Plur	7	conj	7:conj:and	SpaceAfter=No
22	,	,	PUNCT	,	_	21	punct	21:punct	_
23	although	although	SCONJ	IN	_	28	mark	28:mark	_
24	the	the	DET	DT	Definite=Def|PronType=Art	25	det	25:det	_
25	buses	bus	NOUN	NNS	Number=Plur	28	nsubj	28:nsubj	_
26	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	28	cop	28:cop	_
27	very	very	ADV	RB	_	28	advmod	28:advmod	_
28	comfortable	comfortable	ADJ	JJ	Degree=Pos	21	advcl	21:advcl:although	_
29	with	with	ADP	IN	_	32	case	32:case	_
30	spacious	spacious	ADJ	JJ	Degree=Pos	32	amod	32:amod	_
31	reclining	recline	VERB	VBG	VerbForm=Ger	32	amod	32:amod	_
32	seats	seat	NOUN	NNS	Number=Plur	28	obl	28:obl:with	SpaceAfter=No
33	.	.	PUNCT	.	_	7	punct	7:punct	_
