I say invest in good climbing shoes. Just hang out in the bouldering gym to get the feel for it. when you gain an interest in climbing longer routes, you can borrow a harness and use their gear.
It takes time to get into climbing, it may be fustrating at first, but get to know the frequent users and will help you push harder.
I call climbing a cheap sport. Although starting can be expensive, small investments can be made to advance your performance. The gear has a shelf life of 10 years so once you got it, its there for a while. Here is a quick list on how expensive climbing really is.
good shoes: 80$-130$
Harness: 35$-90$
Belay device: 15$-30$, although they can run up to 100$
Chalk bag and chalk: 20$ for a bag, 5$ a cube for chalk
Gym membership: 75$-100$month
When you climb outdoors you will need:
Helmet: 60$-150$
Rope: 120$-250$
Anchor gear: 2 or 4 screw lock biners 20$-30$ each, 2 regular biners: 10-25$ each
Sling: .75$/meter
When you start to push climbing:
Quickdraws: 30$-60$ per draw (minimum 6)
Extra carabiners of all sizes both straight gate, curved and screw lock.
Tape:10$
When you start traditional climbing:
Rack of nuts: 100$-170$ kit of 10 nuts. there are small sizes, medium and large range...so you need 3
Rack of cams: 60-100$ each, 8 can be considered a rack.
De-nutter tool: 40$
at least 12 draws, 4 long sling draws, slings and more biners!
Extra shoes: 120$-160$ for crack climbing
Not mention the trips you are going to take.