New to JoyToy,can't decide on first purchase

Hello, I’m quite new to Warhammer and especially JoyToy, and I’m looking for recommendations.

I’m an Ultramarines fan (open to other legions) and currently deciding between:

• Ultramarines Lieutenant Titus – Collector’s Edition (13 cm)
• Ultramarines Primarch Roboute Guilliman – 1/18 reproduction (12 cm)

Guilliman looks amazing, but he’s about twice the price. After comparing prices again, I’d rather pay ~USD 70/ EUR 60 for Collector Titus than ~USD 150/ EUR125 for Guilliman. (my currency is different)

This figure would be a standalone display piece for my slowly growing Warhammer library collection (The Horus Heresy and Ciaphas Cain). I’m not building an army display (yet).

The (ultramarine) Redemptor Dreadnought would be a great addition, but it’s not currently in stock in my country, and I’m planning to buy other items in the same order from that store.

If your opinion differs, I’d love to hear it. Thanks!